fixed some issues due to the Arg->const char * transition

1 files changed, 1 insertions, 0 deletions

diff --git a/layout.c b/layout.c
index 8b4c940fe614..21ee99c3febf 100644
--- a/layout.c
+++ b/layout.c
@@ -2,6 +2,7 @@
  * See LICENSE file for license details.
  */
 #include "dwm.h"
+#include <stdlib.h>
 
 unsigned int blw = 0;
 Layout *lt = NULL;