diff --git a/HOST/em8080.c b/HOST/em8080.c
index 15cff6f..54446c6 100644
--- a/HOST/em8080.c
+++ b/HOST/em8080.c
@@ -113,7 +113,9 @@ int main(int argc, char** argv) {
     argc--;
     if (!argc) {
       fprintf(stderr, "No filename given\n");
+      return 255;
     }
+    argv++;
 
     i8080 cpu;
     i8080_init(&cpu);