1 files changed, 1 insertions, 1 deletions
diff --git a/Parser/pegen.h b/Parser/pegen.h
index d8ac7e8..ad5c97f 100644
--- a/Parser/pegen.h
+++ b/Parser/pegen.h
@@ -42,7 +42,7 @@ typedef struct {
 } Token;
 
 typedef struct {
-    char *str;
+    const char *str;
     int type;
 } KeywordToken;