1 files changed, 1 insertions, 1 deletions
diff --git a/re.h b/re.h
index dd93168ab1..bfc60d9fa5 100644
--- a/re.h
+++ b/re.h
@@ -31,7 +31,7 @@ struct RMatch {
 
 int str_cicmp _((VALUE, VALUE));
 VALUE reg_regcomp _((VALUE));
-int reg_search _((VALUE, VALUE, int, struct re_registers *));
+int reg_search _((VALUE, VALUE, int, int));
 VALUE reg_regsub _((VALUE, VALUE, struct re_registers *));
 void reg_free _((Regexp *));
 #endif