1 files changed, 2 insertions, 1 deletions
diff --git a/rts/posix/OSMem.c b/rts/posix/OSMem.c
index 3c4455e57f..347c7c1a5c 100644
--- a/rts/posix/OSMem.c
+++ b/rts/posix/OSMem.c
@@ -249,10 +249,11 @@ my_mmap (void *addr, W_ size, int operation)
     if (ret == MAP_FAILED) {
         return NULL;
     }
+#endif /* defined(darwin_HOST_OS) */
+
     // Map in committed pages rather than take a fault for each chunk.
     // Also arrange to include them in core-dump files.
     post_mmap_madvise(operation, size, ret);
-#endif /* defined(darwin_HOST_OS) */
 
     return ret;
 }