diff --git a/client/app.C b/client/app.C
index 25609188d5..b15a2e0c9f 100644
--- a/client/app.C
+++ b/client/app.C
@@ -24,6 +24,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/time.h>
 #include <sys/resource.h>
 #include <fcntl.h>
 #include <ctype.h>