1 files changed, 1 insertions, 0 deletions
diff --git a/win32/win32.c b/win32/win32.c
index 86596136e4..8059a1315d 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1373,6 +1373,7 @@ rb_w32_opendir(const char *filename)
 
     fh = FindFirstFile(scanname, &fd);
     if (fh == INVALID_HANDLE_VALUE) {
+	errno = map_errno(GetLastError());
 	return NULL;
     }