diff --git a/recipes/forms.py b/recipes/forms.py
index 0aa8b64..c7731f7 100644
--- a/recipes/forms.py
+++ b/recipes/forms.py
@@ -9,10 +9,11 @@ class VersionForm(ModelForm):
 		fields = ['label', 'slug', 'body', 'author']
 
 	def clean_slug(self):
-		recipe = Recipe.objects.get(id=self.recipe_id)
 		slug = self.cleaned_data['slug']
-		if recipe.versions.filter(slug=slug).count() > 0: # type: ignore
-			raise ValidationError('A recipe version with this slug already exists.')
+		if 'slug' in self.changed_data:
+			recipe = Recipe.objects.get(id=self.recipe_id)
+			if recipe.versions.filter(slug=slug).count() > 0: # type: ignore
+				raise ValidationError('A recipe version with this slug already exists.')
 		return slug
 
 class IngredientForm(ModelForm):