--- src/cd.c	2011-03-15 03:18:06.000000000 -0400
+++ src/cd.new.c	2013-03-28 11:03:32.649576500 -0400
@@ -38,6 +38,9 @@
 #include <string.h>
 #include <unistd.h>
 #include <limits.h>
+#ifdef __CYGWIN__
+#include <sys/cygwin.h>
+#endif
 
 /*
  * The cd and pwd commands.
@@ -194,6 +197,11 @@
 	char *cdcomppath;
 	const char *lim;
 
+#ifdef __CYGWIN__
+        char pathbuf[PATH_MAX + 1];
+        cygwin_conv_to_full_posix_path (dir, pathbuf);
+	 dir = pathbuf;
+#endif
 	cdcomppath = sstrdup(dir);
 	STARTSTACKSTR(new);
 	if (*dir != '/') {