1 files changed, 2 insertions, 0 deletions
diff --git a/include/mruby.h b/include/mruby.h
index 972bf3a25..408623e00 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -269,7 +269,9 @@ typedef struct mrb_state {
   mrb_sym symidx;
   struct kh_n2s *name2sym;      /* symbol table */
   struct kh_s2n *sym2name;      /* reverse symbol table */
+#ifdef INCLUDE_REGEXP
   struct RNode *local_svar;/* regexp */
+#endif
 
   struct RClass *eException_class;
   struct RClass *eStandardError_class;