diff --git a/rowers/templates/summary_edit.html b/rowers/templates/summary_edit.html
index 3419f077..3a399ebe 100644
--- a/rowers/templates/summary_edit.html
+++ b/rowers/templates/summary_edit.html
@@ -164,9 +164,11 @@
       {% csrf_token %}
       <input type="hidden" name="{{ savebutton }}" value="{{ intervalstring }}">
       <input type="hidden" name="nrintervals" value={{ nrintervals }}>
+      {% localize off %}
       {% for key,value in formvalues.items %}
       <input type="hidden" name="{{ key }}" value="{{ value }}">
       {% endfor %}
+      {% endlocalize %}
       {% for field in detailform %}
       {{ field.as_hidden }}
       {% endfor %}