diff --git a/packages/core/src/composables/useHandle.ts b/packages/core/src/composables/useHandle.ts
index c26e9900..ccabe75c 100644
--- a/packages/core/src/composables/useHandle.ts
+++ b/packages/core/src/composables/useHandle.ts
@@ -74,7 +74,7 @@ export const checkElementBelowIsValid = (
       result.isValid =
         (isFunction(isValidConnection)
           ? isValidConnection(connection, { edges, sourceNode: getNode(sourceId)!, targetNode: getNode(targetId)! })
-          : true) ||
+          : elementBelowNodeId !== nodeId || elementBelowHandleId !== handleId) ||
         !result.connection.target ||
         !result.connection.source
     }