diff --git a/ChangeLog b/ChangeLog
index 1c44a5c4ec..7932c1014b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Feb 19 13:21:51 2002  WATANABE Hirofumi  <eban@ruby-lang.org>
+
+	* regex.c: fix prototypes of xmalloc(), xcalloc() and xrealloc().
+
 Tue Feb 19 13:16:08 2002  Nobuyoshi Nakada  <nobu.nakada@nifty.ne.jp>
 
 	* io.c (rb_io_ungetc): don't fail pushed EOF back.
diff --git a/regex.c b/regex.c
index 9f84c5ae23..54dd725262 100644
--- a/regex.c
+++ b/regex.c
@@ -78,9 +78,9 @@ void rb_trap_exec _((void));
 #define xrealloc ruby_xrealloc
 #define xfree ruby_xfree
 
-void *xmalloc _((size_t));
-void *xcalloc _((size_t,size_t));
-void *xrealloc _((void*,size_t));
+void *xmalloc _((long));
+void *xcalloc _((long,long));
+void *xrealloc _((void*,long));
 void xfree _((void*));
 #endif