diff --git a/InvenTree/part/views.py b/InvenTree/part/views.py
index d5824b2dab..98a209b714 100644
--- a/InvenTree/part/views.py
+++ b/InvenTree/part/views.py
@@ -567,6 +567,14 @@ class PartPricing(AjaxView):
 
     def get_pricing(self, quantity=1):
 
+        try:
+            quantity = int(quantity)
+        except ValueError:
+            quantity = 1
+
+        if quantity < 1:
+            quantity = 1
+
         part = self.get_part()
         
         ctx = {