diff --git a/src/ui/rosterwin.c b/src/ui/rosterwin.c
index 7dfad1e1..ed5e01f4 100644
--- a/src/ui/rosterwin.c
+++ b/src/ui/rosterwin.c
@@ -34,6 +34,7 @@
 
 #include <assert.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "contact.h"
 #include "ui/ui.h"