1 files changed, 2 insertions, 0 deletions

diff --git a/gc.c b/gc.c
index 9963cdec52..b8eeed23ef 100644
--- a/gc.c
+++ b/gc.c
@@ -39,6 +39,8 @@
 # ifdef _WIN32
 #   define malloc_usable_size(a) _msize(a)
 # endif
+#else
+# include <malloc.h>
 #endif
 
 #if /* is ASAN enabled? */ \