1 files changed, 1 insertions, 1 deletions
diff --git a/main.c b/main.c
index 0d3a52e..0be6f54 100644
--- a/main.c
+++ b/main.c
@@ -39,7 +39,7 @@ int main(int argc, char **argv) {
     if ((a_env.prompt = argv[2])) {
         char *p = argv[2];
         do {
-            if (*p != '\n' && (*p) < 32 || (*p) > 126) {
+            if ((*p != '\n') && ((*p) < 32 || (*p) > 126)) {
                 fprintf(stderr, "The given prompt is illegal.\n");
                 return 64;
             }