diff --git a/cde/programs/dthelp/dthelpview/Util.c b/cde/programs/dthelp/dthelpview/Util.c
index 9a89f94c9..d7e28135a 100644
--- a/cde/programs/dthelp/dthelpview/Util.c
+++ b/cde/programs/dthelp/dthelpview/Util.c
@@ -43,6 +43,7 @@
 
 /* System Include Files  */
 #include <stdio.h>
+#include <stdlib.h>
 #include <signal.h>
 
 #include <X11/Intrinsic.h>