diff --git a/swaylock/main.c b/swaylock/main.c
index 32e6086f5..65673a118 100644
--- a/swaylock/main.c
+++ b/swaylock/main.c
@@ -310,7 +310,9 @@ int main(int argc, char **argv) {
 			if(*image_path != ':') {
 				fprintf(stderr, "--window-image should be in form '<window #>:<image path>'\n");
 				exit(EXIT_FAILURE);
-			} else image_path++;
+			} else {
+				image_path++;
+			}
 
 			list_arbitrary_insert(images.a, index, image_path);
 			break;