1 files changed, 1 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 93feb07ecd..f674f4ebfe 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -3738,7 +3738,7 @@ Void_t* cALLOc(n, elem_size) size_t n; size_t elem_size;
   }
 #endif
 
-  MALLOC_ZERO(mem, sz);
+  MALLOC_ZERO(mem, csz - SIZE_SZ);
   return mem;
 }