---
 ucm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/ucm.c
+++ b/ucm.c
@@ -33,6 +33,7 @@ THE SOFTWARE. */
 #include <X11/Xaw/List.h>
 #include <X11/Xaw/Scrollbar.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include "UGrid.h"
 
 char *ProgramName;