Index: uspace/lib/display/src/disp_srv.c
===================================================================
--- uspace/lib/display/src/disp_srv.c	(revision 6427f08386d4ef6f81a4576e745e99577840f93c)
+++ uspace/lib/display/src/disp_srv.c	(revision 879d7245cbdc281f61fa2ce307ec595f296867ac)
@@ -154,5 +154,5 @@
 		}
 
-		printf("display_conn method=%lu\n", method);
+		printf("display_conn method=%u\n", (unsigned) method);
 		switch (method) {
 		case DISPLAY_CALLBACK_CREATE: