diff --git a/c/unlink.c b/c/unlink.c
index c9cb016..f02952b 100644
--- a/c/unlink.c
+++ b/c/unlink.c
@@ -20,5 +20,5 @@ int main(int argc, char** argv) {
 }
 
 // Compilation: cc unlink.c -o unlink
-// Usage: ./unlink FILES ...
-// License: CC-0
+// Usage: ./unlink FILES...
+// License: Public Domain