diff --git a/pflaenzli/pflaenzli/views.py b/pflaenzli/pflaenzli/views.py
index bb970ec..67db9da 100644
--- a/pflaenzli/pflaenzli/views.py
+++ b/pflaenzli/pflaenzli/views.py
@@ -87,7 +87,10 @@ def offer_edit(request, offer_id):
         form = CreateOfferForm(request.POST, request.FILES, instance=offer)
         if form.is_valid():
             offer = form.save(commit=False)
-            offer.image.name = generate_unique_filename(form.cleaned_data['image'].name)
+            if 'image' in request.FILES:
+                offer.image.name = generate_unique_filename(form.cleaned_data['image'].name)
+            else:
+                offer.image = offer.image
             offer.user = request.user
             offer.save()
             messages.success(request, _("Offer updated successfully!"))