diff --git a/tests/admin_pages/test_i18n.py b/tests/admin_pages/test_i18n.py
index 8b2c9fba5..747aa75a6 100644
--- a/tests/admin_pages/test_i18n.py
+++ b/tests/admin_pages/test_i18n.py
@@ -312,3 +312,50 @@ def test_i18n_pagination(pub):
     resp = resp.click('20')
     resp = resp.click('3')
     assert 'offset=40' in resp.request.url
+
+
+def test_i18n_mark_as_non_translatabe(pub):
+    TranslatableMessage.wipe()
+    Workflow.wipe()
+    FormDef.wipe()
+    BlockDef.wipe()
+    Category.wipe()
+    CardDef.wipe()
+    MailTemplate.wipe()
+    create_superuser(pub)
+    workflow = Workflow(name='workflow')
+    workflow.add_status('First Status')
+    workflow.add_status('Second Status')
+    workflow.store()
+
+    app = login(get_app(pub))
+    # first time goes to scanning
+    resp = app.get('/backoffice/i18n/', status=302)
+    resp = resp.follow()
+    resp = resp.click('Go to multilinguism page')
+    # second time, the page stays on
+    resp = app.get('/backoffice/i18n/', status=200)
+
+    assert TranslatableMessage.count() == 2  # First Status / Second Status
+    assert resp.pyquery('tr').length == 2
+
+    # check form filter
+    assert resp.form['lang'].value == 'fr'
+    resp.form['q'] = 'First'
+    resp = resp.form.submit()
+    assert resp.pyquery('tr').length == 1
+
+    # mark a message as non translatable
+    resp = resp.click('edit', index=0)
+    resp.form['non_translatable'].checked = True
+    resp = resp.form.submit('submit').follow()
+    msg = TranslatableMessage.select([Equal('string', 'First Status')])[0]
+    assert msg.translatable is False
+
+    resp = app.get('/backoffice/i18n/', status=200)
+    assert resp.pyquery('tr').length == 1
+    assert resp.pyquery('tr td:first-child').text() == 'Second Status'
+    resp.form['non_translatable'].checked = True
+    resp = resp.form.submit('submit')
+    assert resp.pyquery('tr').length == 1
+    assert resp.pyquery('tr td:first-child').text() == 'First Status'
diff --git a/wcs/backoffice/i18n.py b/wcs/backoffice/i18n.py
index 858c2adc2..83af15a7d 100644
--- a/wcs/backoffice/i18n.py
+++ b/wcs/backoffice/i18n.py
@@ -32,7 +32,7 @@ from wcs.qommon import _, errors, get_cfg, misc, ods, template
 from wcs.qommon.afterjobs import AfterJob
 from wcs.qommon.backoffice.listing import pagination_links
 from wcs.qommon.backoffice.menu import html_top
-from wcs.qommon.form import FileWidget, Form, RadiobuttonsWidget, TextWidget
+from wcs.qommon.form import CheckboxWidget, FileWidget, Form, RadiobuttonsWidget, TextWidget
 from wcs.qommon.storage import Equal, FtsMatch, ILike, Or
 from wcs.workflows import Workflow
 
@@ -69,6 +69,7 @@ class I18nDirectory(Directory):
         get_response().breadcrumb.append(('i18n/', _('Multilinguism')))
 
         criterias = []
+        criterias.append(Equal('translatable', not (bool(get_request().form.get('non_translatable')))))
         if get_request().form.get('q'):
             search_term = get_request().form.get('q')
             criterias.append(Or([ILike('string', search_term), FtsMatch(search_term)]))
@@ -85,6 +86,7 @@ class I18nDirectory(Directory):
             'pagination_links': pagination_links(offset, limit, total_count, load_js=False),
             'messages': TranslatableMessage.select(criterias, offset=offset, limit=limit, order_by='string'),
             'query': get_request().get_query(),
+            'non_translatable': get_request().form.get('non-translatable'),
         }
 
         get_response().add_javascript(['popup.js'])
@@ -211,6 +213,12 @@ class MessageDirectory(Directory):
         rows = min(10, max(2, self.msg.string.count('\n')))
         attr = 'string_%s' % self.lang
         form.add(TextWidget, 'translation', value=getattr(self.msg, attr), rows=rows)
+        form.add(
+            CheckboxWidget,
+            'non_translatable',
+            title=_('Mark as non-translatable'),
+            value=not (self.msg.translatable),
+        )
         form.add_submit('submit', _('Submit'))
         form.add_submit('cancel', _('Cancel'))
         if form.get_widget('cancel').parse():
@@ -218,6 +226,7 @@ class MessageDirectory(Directory):
 
         if form.is_submitted() and not form.has_errors():
             setattr(self.msg, attr, form.get_widget('translation').parse())
+            self.msg.translatable = not (form.get_widget('non_translatable').parse())
             self.msg.store()
             update_digests()
             return redirect('../../?' + get_request().get_query())
diff --git a/wcs/i18n.py b/wcs/i18n.py
index eba597b4a..6548cb884 100644
--- a/wcs/i18n.py
+++ b/wcs/i18n.py
@@ -22,6 +22,7 @@ class TranslatableMessage(sql.TranslatableMessage):
     string = None
     context = None
     locations = None  # list
+    translatable = True
 
     def translations(self):
         return {x.split('_', 1)[1]: getattr(self, x) for x in self.__dict__ if x.startswith('string_')}
diff --git a/wcs/sql.py b/wcs/sql.py
index 46a065ee2..337ba9b8c 100644
--- a/wcs/sql.py
+++ b/wcs/sql.py
@@ -4215,6 +4215,7 @@ class TranslatableMessage(SqlMixin):
         ('context', 'varchar'),
         ('locations', 'varchar[]'),
         ('last_update_time', 'timestamptz'),
+        ('translatable', 'boolean'),
     ]
 
     id = None
@@ -4238,6 +4239,7 @@ class TranslatableMessage(SqlMixin):
                                     context VARCHAR,
                                     locations VARCHAR[],
                                     last_update_time TIMESTAMPTZ,
+                                    translatable BOOLEAN DEFAULT TRUE,
                                     fts TSVECTOR
                                    )'''
                 % table_name
@@ -4250,6 +4252,9 @@ class TranslatableMessage(SqlMixin):
         )
         existing_fields = {x[0] for x in cur.fetchall()}
 
+        if 'translatable' not in existing_fields:
+            cur.execute('''ALTER TABLE %s ADD COLUMN translatable BOOLEAN DEFAULT(TRUE)''' % table_name)
+
         # add columns for translations
         for field in cls.get_data_fields():
             if field not in existing_fields:
@@ -4306,7 +4311,10 @@ class TranslatableMessage(SqlMixin):
     @guard_postgres
     def load_as_catalog(cls, language):
         conn, cur = get_connection_and_cursor()
-        sql_statement = 'SELECT context, string, string_%s FROM %s' % (language, cls._table_name)
+        sql_statement = 'SELECT context, string, string_%s FROM %s WHERE translatable = TRUE' % (
+            language,
+            cls._table_name,
+        )
         cur.execute(sql_statement)
         catalog = {(x[0], x[1]): x[2] for x in cur.fetchall()}
         conn.commit()
@@ -5060,7 +5068,7 @@ def get_period_total(
 # latest migration, number + description (description is not used
 # programmaticaly but will make sure git conflicts if two migrations are
 # separately added with the same number)
-SQL_LEVEL = (78, 'add audit table')
+SQL_LEVEL = (79, 'add translatable column to TranslatableMessage table')
 
 
 def migrate_global_views(conn, cur):
@@ -5239,8 +5247,9 @@ def migrate():
         # 67: re-migrate legacy tokens
         do_tokens_table()
         migrate_legacy_tokens()
-    if sql_level < 68:
+    if sql_level < 79:
         # 68: multilinguism
+        # 79: add translatable column to TranslatableMessage table
         TranslatableMessage.do_table()
     if sql_level < 72:
         # 72: add testdef table
diff --git a/wcs/templates/wcs/backoffice/i18n.html b/wcs/templates/wcs/backoffice/i18n.html
index dbfaa3819..2aa3974fe 100644
--- a/wcs/templates/wcs/backoffice/i18n.html
+++ b/wcs/templates/wcs/backoffice/i18n.html
@@ -14,7 +14,12 @@
   {{ block.super }}
 
   <form action="." class="i18n-filter-form">
-    <label>{% trans "Search:" %} <input type="search" name="q" value="{{q|default:""}}"></label>
+    <span>
+      <label>{% trans "Search:" %} <input type="search" name="q" value="{{q|default:""}}"></label>
+      <label><input name="non_translatable" type="checkbox"
+        {% if non_translatable %}checked{% endif %}
+      >{% trans "Search non-translatable strings" %}</label>
+    </span>
     <fieldset class="radiogroup"><legend>{% trans "Language:" %}</legend>
       {% for language in supported_languages %}
         <input type="radio" name="lang" value="{{language.0}}" id="radio-lang-{{language.0}}"