diff --git a/frontend/src/pages/performers/performerForm/PerformerForm.tsx b/frontend/src/pages/performers/performerForm/PerformerForm.tsx
index 669defb23..6b9a7ad44 100644
--- a/frontend/src/pages/performers/performerForm/PerformerForm.tsx
+++ b/frontend/src/pages/performers/performerForm/PerformerForm.tsx
@@ -256,6 +256,9 @@ const PerformerForm: FC<PerformerProps> = ({
       const [cupSize, bandSize] = parseBraSize(data.braSize);
       performerData.cup_size = cupSize;
       performerData.band_size = bandSize ?? 0;
+    } else if (performer?.band_size || performer?.cup_size) {
+      performerData.cup_size = null;
+      performerData.band_size = null;
     }
 
     if (