diff --git a/core/forms.py b/core/forms.py
index 04e4b08..ab2190f 100644
--- a/core/forms.py
+++ b/core/forms.py
@@ -333,7 +333,7 @@ class AssetRestrictionForm(RestrictedFormMixin, ModelForm):
             "pairs": "Comma-separated list of pairs to restrict when a webhook is received. This does nothing on its own.",
         }
 
-    pairs_parsed = forms.BooleanField(widget=forms.HiddenInput)
+    pairs_parsed = forms.BooleanField(widget=forms.HiddenInput, required=False)
 
     def clean(self):
         cleaned_data = super(AssetRestrictionForm, self).clean()
@@ -351,5 +351,7 @@ class AssetRestrictionForm(RestrictedFormMixin, ModelForm):
                     return
 
             cleaned_data["pairs_parsed"] = new_pairs
+        else:
+            cleaned_data["pairs_parsed"] = {}
 
         return cleaned_data
diff --git a/core/models.py b/core/models.py
index 5ba1a7d..06103a1 100644
--- a/core/models.py
+++ b/core/models.py
@@ -426,7 +426,7 @@ class AssetRestriction(models.Model):
     name = models.CharField(max_length=255)
     description = models.TextField(null=True, blank=True)
     pairs = models.CharField(max_length=4096, null=True, blank=True)
-    pairs_parsed = models.JSONField(null=True, blank=True, default=dict)
+    pairs_parsed = models.JSONField(null=True, blank=True, default=list)
 
     webhook_id = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
 
diff --git a/core/trading/assetfilter.py b/core/trading/assetfilter.py
index 851a9c6..6ccda02 100644
--- a/core/trading/assetfilter.py
+++ b/core/trading/assetfilter.py
@@ -4,4 +4,4 @@ def get_allowed(strategy, symbol, direction):
     linked to the strategy.
     """
 
-    #asset_group = strategy.
\ No newline at end of file
+    # asset_group = strategy.
diff --git a/core/views/assets.py b/core/views/assets.py
index 3047385..ff7ab3f 100644
--- a/core/views/assets.py
+++ b/core/views/assets.py
@@ -86,6 +86,10 @@ class AssetRestrictionCreate(
     submit_url_name = "assetrestriction_create"
     submit_url_args = ["type", "group"]
 
+    def form_invalid(self, form):
+        """If the form is invalid, render the invalid form."""
+        return self.get(self.request, **self.kwargs, form=form)
+
     def pre_save_mutate(self, user, obj):
         try:
             assetgroup = AssetGroup.objects.get(pk=self.kwargs["group"], user=user)