1 files changed, 1 insertions, 1 deletions
diff --git a/re.h b/re.h
index 43bde23856..45b2753dd5 100644
--- a/re.h
+++ b/re.h
@@ -35,7 +35,7 @@ long rb_reg_adjust_startpos _((VALUE, VALUE, long, long));
 void rb_match_busy _((VALUE));
 VALUE rb_reg_quote _((VALUE));
 
-EXTERN int ruby_ignorecase;
+RUBY_EXTERN int ruby_ignorecase;
 
 int rb_reg_mbclen2 _((unsigned int, VALUE));
 #define mbclen2(c,re) rb_reg_mbclen2((c),(re))