diff --git a/procedures/deleteIsaCache.sql b/procedures/deleteIsaCache.sql
index 793f7f5f616113a315e2961a9e1b97f0597455a2..09a963c0af9e1c03e94888bd5a0c0815c072d425 100644
--- a/procedures/deleteIsaCache.sql
+++ b/procedures/deleteIsaCache.sql
@@ -52,7 +52,7 @@ BEGIN
             SELECT e.child, IVersion AS child_iversion, e.parent
             FROM isa_cache AS e
             WHERE e.child = EntityID
-            AND e.rpath = CAST(EntityID AS CHAR) COLLATE utf8_unicode_ci;
+            AND e.rpath = EntityID;
     END IF;
 
     DELETE FROM isa_cache