diff --git a/sdk/lib/cmlib/cmindex.c b/sdk/lib/cmlib/cmindex.c
index 618de3f35db..599900124d5 100644
--- a/sdk/lib/cmlib/cmindex.c
+++ b/sdk/lib/cmlib/cmindex.c
@@ -1285,7 +1285,7 @@ CmpSelectLeaf(IN PHHIVE Hive,
     if (!IndexKey)
     {
         /* Should not happen! */
-        ASSERTMSG("IndexKey = NULL!, it should not happen!\n", FALSE);
+        ASSERT(IndexKey != NULL);
         return HCELL_NIL;
     }