diff --git a/abduco.c b/abduco.c
index 5c25d5d..4db1385 100644
--- a/abduco.c
+++ b/abduco.c
@@ -640,7 +640,7 @@ int main(int argc, char *argv[]) {
 			puts("abduco-"VERSION" © 2013-2018 Marc André Tanner");
 			exit(EXIT_SUCCESS);
 		case 'm':
-			mouse = true;
+			action = opt;
 		default:
 			usage();
 		}