diff --git a/core/filters.py b/core/filters.py
index bb76356a..f2513bdb 100644
--- a/core/filters.py
+++ b/core/filters.py
@@ -43,11 +43,13 @@ class CaseInsensitiveListFilter(BaseInFilter, CharFilter):
         q = Q()
         for v in values:
             q |= Q(**{f"{self.field_name}__iexact": v})
+        else:
+            qs = qs.filter(q).distinct()
 
         logger.debug("CaseInsensitiveListFilter Q: %s", str(q))
         logger.debug("CaseInsensitiveListFilter qs: %s", str(qs))
 
-        return qs.filter(q).distinct()
+        return qs
 
 
 class ProductFilter(FilterSet):