diff --git a/drivers/staging/greybus/Documentation/firmware/authenticate.c b/drivers/staging/greybus/Documentation/firmware/authenticate.c
index 0ef88b7d24de..ba4b16b04557 100644
--- a/drivers/staging/greybus/Documentation/firmware/authenticate.c
+++ b/drivers/staging/greybus/Documentation/firmware/authenticate.c
@@ -85,7 +85,7 @@ int main(int argc, char *argv[])
 	}
 
 	printf("Authenticated, result (%02x), sig-size (%02x)\n",
-		authenticate.result_code, authenticate.signature_size);
+	       authenticate.result_code, authenticate.signature_size);
 
 close_fd:
 	close(fd);