diff --git a/InvenTree/company/api.py b/InvenTree/company/api.py
index 999e4e4039..2c05c98d91 100644
--- a/InvenTree/company/api.py
+++ b/InvenTree/company/api.py
@@ -158,6 +158,7 @@ class ManufacturerPartList(generics.ListCreateAPIView):
         'manufacturer__name',
         'description',
         'MPN',
+        'part__IPN',
         'part__name',
         'part__description',
     ]
@@ -355,6 +356,7 @@ class SupplierPartList(generics.ListCreateAPIView):
         'manufacturer_part__manufacturer__name',
         'description',
         'manufacturer_part__MPN',
+        'part__IPN',
         'part__name',
         'part__description',
     ]