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-rw-r--r--lib/core/runtime_v2.nim3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/core/runtime_v2.nim b/lib/core/runtime_v2.nim
index f76fd2f3e..8a1e45741 100644
--- a/lib/core/runtime_v2.nim
+++ b/lib/core/runtime_v2.nim
@@ -47,8 +47,9 @@ proc nimNewObj(size: int): pointer {.compilerRtl.} =
   when defined(nimscript):
     discard
   elif defined(useMalloc):
-    result = c_malloc(s) +! sizeof(RefHeader)
+    var orig = c_malloc(s)
     nimZeroMem(result, s)
+    result = orig +! sizeof(RefHeader)
   else:
     result = alloc0(s) +! sizeof(RefHeader)
   inc allocs