1 files changed, 1 insertions, 0 deletions
diff --git a/src/fvm.c b/src/fvm.c
index 6326dc8..db4b04b 100644
--- a/src/fvm.c
+++ b/src/fvm.c
@@ -424,6 +424,7 @@ int64_t fvm_execute(struct fvm *vm) {
       return vm->rv;
     default:
       fprintf(stderr, "unknown opcode.\n");
+      exit(-1);
       break; 
     }
   }