1 files changed, 1 insertions, 1 deletions
diff --git a/vm.c b/vm.c
index 80e3f0509e..fc135b00fa 100644
--- a/vm.c
+++ b/vm.c
@@ -2385,7 +2385,7 @@ core_hash_merge(VALUE hash, long argc, const VALUE *argv)
 {
     long i;
 
-    assert(argc % 2 == 0);
+    VM_ASSERT(argc % 2 == 0);
     for (i=0; i<argc; i+=2) {
 	rb_hash_aset(hash, argv[i], argv[i+1]);
     }