1 files changed, 1 insertions, 1 deletions

diff --git a/utils/invert.c b/utils/invert.c
index cd54a87..ff01bee 100644
--- a/utils/invert.c
+++ b/utils/invert.c
@@ -6,7 +6,7 @@
 
 #define STRLENMAX 1000
 
-int main() {
+int main(void) {
         char str[STRLENMAX];
         cube_t cube;