1 files changed, 1 insertions, 0 deletions
diff --git a/re.h b/re.h
index 2c3463dadc..8690932bb5 100644
--- a/re.h
+++ b/re.h
@@ -24,6 +24,7 @@ struct RMatch {
     struct RBasic basic;
     VALUE str;
     struct re_registers *regs;
+    VALUE regexp;  /* RRegexp */
 };
 
 #define RMATCH(obj)  (R_CAST(RMatch)(obj))