diff --git a/src/link.c b/src/link.c
index b18cb9a..5047bed 100644
--- a/src/link.c
+++ b/src/link.c
@@ -21,7 +21,7 @@ static int _link(char * file1, char * file2)
 /* usage */
 static int _usage(void)
 {
-	fprintf(stderr, "Usage: link file1 file2\n");
+	fprintf(stderr, "%s", "Usage: link file1 file2\n");
 	return 1;
 }