Fix the help text

1 files changed, 1 insertions, 1 deletions

diff --git a/tr8vm.c b/tr8vm.c
index 32c81b5..37c82f9 100644
--- a/tr8vm.c
+++ b/tr8vm.c
@@ -260,7 +260,7 @@ int main(int argc, char *argv[])
 
     if (argc < 2)
     {
-        fprintf(stderr, "Usage: input.prg\n");
+        fprintf(stderr, "Usage: input.tr8\n");
         return 1;
     }
     fd = fopen(argv[1], "rb");