diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go
index 53184615a1..cece04eeca 100644
--- a/src/runtime/malloc.go
+++ b/src/runtime/malloc.go
@@ -1043,7 +1043,7 @@ func mallocgc(size uintptr, typ *_type, needzero bool) unsafe.Pointer {
 			}
 			x = unsafe.Pointer(v)
 			if needzero && span.needzero != 0 {
-				memclrNoHeapPointers(unsafe.Pointer(v), size)
+				memclrNoHeapPointers(x, size)
 			}
 		}
 	} else {