diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din
index bdd282a3e..8a0585de6 100644
--- a/winsup/cygwin/cygwin.din
+++ b/winsup/cygwin/cygwin.din
@@ -11,7 +11,6 @@ __progname DATA
 __rcmd_errstr DATA
 _check_for_executable DATA
 _ctype_ DATA
-__ctype_ptr DATA
 _daylight DATA
 _impure_ptr DATA
 _sys_errlist DATA