diff --git a/nsprpub/config/autoconf.mk.in b/nsprpub/config/autoconf.mk.in
index 3a049f608e9..2784f4f2f05 100644
--- a/nsprpub/config/autoconf.mk.in
+++ b/nsprpub/config/autoconf.mk.in
@@ -67,6 +67,7 @@ STRIP		= @STRIP@
 NSINSTALL	= @NSINSTALL@
 FILTER		= @FILTER@
 IMPLIB		= @IMPLIB@
+CYGWIN_WRAPPER	= @CYGWIN_WRAPPER@
 
 OS_CPPFLAGS	= @CPPFLAGS@
 OS_CFLAGS	= $(OS_CPPFLAGS) @CFLAGS@ $(DSO_CFLAGS)