diff --git a/plugins/fishlim/test.c b/plugins/fishlim/test.c
index 9158d01c..e0abce1d 100644
--- a/plugins/fishlim/test.c
+++ b/plugins/fishlim/test.c
@@ -24,6 +24,7 @@
 
 #include <glib.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "fish.h"