Index: uspace/lib/display/src/disp_srv.c
===================================================================
--- uspace/lib/display/src/disp_srv.c	(revision b093a62e71863bad6005b276dc63bb808cf77b9d)
+++ uspace/lib/display/src/disp_srv.c	(revision bd1f9a6dd4e2689644c496b7e30101dc52596e49)
@@ -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: