1 files changed, 4 insertions, 1 deletions
diff --git a/src/gc.c b/src/gc.c
index bcd0b29b6..a40bd8545 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -5,7 +5,6 @@
 */
 
 #include <string.h>
-#include <stdlib.h>
 #ifdef MRB_USE_MALLOC_TRIM
 #include <malloc.h>
 #endif
@@ -24,6 +23,10 @@
 #include <mruby/throw.h>
 #include <mruby/presym.h>
 
+#ifdef MRB_GC_STRESS
+#include <stdlib.h>
+#endif
+
 /*
   = Tri-color Incremental Garbage Collection