diff --git a/C/load_dl.c b/C/load_dl.c
index bbd2d040e..23ce1a2fe 100755
--- a/C/load_dl.c
+++ b/C/load_dl.c
@@ -21,6 +21,7 @@
 
 #if LOAD_DL
 
+#include <stdlib.h>
 #include <dlfcn.h>
 #include <string.h>
 #include <stdio.h>