1 files changed, 1 insertions, 0 deletions
diff --git a/ext/json/parser/parser.h b/ext/json/parser/parser.h
index e6cf779024..e3eb920cc6 100644
--- a/ext/json/parser/parser.h
+++ b/ext/json/parser/parser.h
@@ -37,6 +37,7 @@ typedef struct JSON_ParserStruct {
     int allow_nan;
     int parsing_name;
     int symbolize_names;
+    int freeze;
     VALUE object_class;
     VALUE array_class;
     VALUE decimal_class;