diff --git a/aleksis/core/templates/core/base.html b/aleksis/core/templates/core/base.html
index f7944329cce2ebfb62ae29849ef8ad0f3a173ae2..64aa9c5384971039e65e90bbc6a965cefac25531 100644
--- a/aleksis/core/templates/core/base.html
+++ b/aleksis/core/templates/core/base.html
@@ -32,7 +32,7 @@
   {# Add i18n names for calendar (for use in datepicker) #}
   {# Passing the locale is not necessary for the scripts to work, but prevents caching issues #}
   {% get_current_language as LANGUAGE_CODE %}
-  <script src="{% url "javascript-catalog" %}locale={{ LANGUAGE_CODE }}" type="text/javascript"></script>
+  <script src="{% url "javascript-catalog" %}?locale={{ LANGUAGE_CODE }}" type="text/javascript"></script>
   <script src="{% url "calendarweek_i18n_js" %}?first_day=6&amp;locale={{ LANGUAGE_CODE }}" type="text/javascript"></script>
 
   {# Include jQuery to provide $(document).ready #}