diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 8c8dc9047..82c295a28 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+Thu May 11 00:54:00 2000  Charles Wilson <cwilson@ece.gatech.edu>
+
+	* cygwin.din: insure that regsub() is included in
+	cygwin1.dll
+
 Tue May  9 18:59:41 2000  Christopher Faylor <cgf@cygnus.com>
 
 	* Makefile.in: Use appropriate VARIABLE to refer to cygwin.def in load
diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din
index 29346609e..4b1d22136 100644
--- a/winsup/cygwin/cygwin.din
+++ b/winsup/cygwin/cygwin.din
@@ -566,6 +566,8 @@ regerror
 _regerror = regerror
 regfree
 _regfree = regfree
+regsub
+_regsub = regsub
 remainder
 _remainder = remainder
 remainderf