1 files changed, 1 insertions, 0 deletions
diff --git a/ruby.h b/ruby.h
index a4a8753ee9..14d864c6c1 100644
--- a/ruby.h
+++ b/ruby.h
@@ -592,6 +592,7 @@ RUBY_EXTERN VALUE rb_cFloat;
 RUBY_EXTERN VALUE rb_cHash;
 RUBY_EXTERN VALUE rb_cInteger;
 RUBY_EXTERN VALUE rb_cIO;
+RUBY_EXTERN VALUE rb_cMethod;
 RUBY_EXTERN VALUE rb_cModule;
 RUBY_EXTERN VALUE rb_cNilClass;
 RUBY_EXTERN VALUE rb_cNumeric;