2 files changed, 3 insertions, 4 deletions
diff --git a/src/error.c b/src/error.c
index f7e5995e6..be47e1618 100644
--- a/src/error.c
+++ b/src/error.c
@@ -432,10 +432,6 @@ mrb_sys_fail(mrb_state *mrb, const char *mesg)
   }
 }
 
-#ifdef MRB_ENABLE_CXX_EXCEPTION
-mrb_int mrb_jmpbuf::jmpbuf_id = 0;
-#endif
-
 void
 mrb_init_exception(mrb_state *mrb)
 {
diff --git a/src/mruby_core.rake b/src/mruby_core.rake
index 7b244c8d3..2e6abfcd3 100644
--- a/src/mruby_core.rake
+++ b/src/mruby_core.rake
@@ -22,6 +22,9 @@ MRuby.each_target do
 extern "C" {
 #include "#{MRUBY_ROOT}/#{t.prerequisites.first}"
 }
+
+
+#{v == 'error'? 'mrb_int mrb_jmpbuf::jmpbuf_id = 0;' : ''}
 EOS
         end
       end