diff --git a/sbas/views.py b/sbas/views.py
index e909b224..5fd92949 100644
--- a/sbas/views.py
+++ b/sbas/views.py
@@ -269,7 +269,7 @@ def exam_take(request, pk, sk, cid):
         if "next" in request.POST:
             return redirect("sbas:exam_take", pk=pk, sk=pos, cid=cid)
         elif "previous" in request.POST:
-            return redirect("sbas:exam_take", pk=pk, sk=pos - 1, cid=cid)
+            return redirect("sbas:exam_take", pk=pk, sk=pos - 2, cid=cid)
     else:
         form = CidUserAnswerForm(instance=answer)