diff --git a/src/appveyor.bat b/src/appveyor.bat
index 88a0fae0c0708..f2fe3e25bd2b5 100644
--- a/src/appveyor.bat
+++ b/src/appveyor.bat
@@ -44,8 +44,8 @@ xcopy /s .ext\include C:\Ruby22\include\ruby-2.2.0
 popd
 :: Racket
 :: Need a patch to install gvim with dynamic racket
-:: Patch from Yukihiro Nakadaira https://groups.google.com/d/msg/vim_dev/qg7R7HeGq50/l-R74zATAwAJ
-curl -f -L "https://groups.google.com/group/vim_dev/attach/44cb7b87c79e5/if_mzscheme4.diff?part=0.1&authuser=0" -o fix_mzscheme.diff
+:: Patch from Yukihiro Nakadaira https://groups.google.com/d/msg/vim_dev/qg7R7HeGq50/XLqqrzZ3BQAJ
+curl -f -L "https://groups.google.com/group/vim_dev/attach/57736afaaba5c/if_mzscheme5.diff?part=0.1&authuser=0" -o fix_mzscheme.diff
 git apply --check fix_mzscheme.diff && git apply fix_mzscheme.diff || exit 1
 curl -f -L https://mirror.racket-lang.org/releases/6.3/installers/racket-minimal-6.3-i386-win32.exe -o racket.exe
 start /wait racket.exe /S
@@ -104,8 +104,8 @@ xcopy /s .ext\include C:\Ruby22-x64\include\ruby-2.2.0
 popd
 :: Racket
 :: Need a patch to install gvim with dynamic racket
-:: Patch from Yukihiro Nakadaira https://groups.google.com/d/msg/vim_dev/qg7R7HeGq50/l-R74zATAwAJ
-curl -f -L "https://groups.google.com/group/vim_dev/attach/44cb7b87c79e5/if_mzscheme4.diff?part=0.1&authuser=0" -o fix_mzscheme.diff
+:: Patch from Yukihiro Nakadaira https://groups.google.com/d/msg/vim_dev/qg7R7HeGq50/XLqqrzZ3BQAJ
+curl -f -L "https://groups.google.com/group/vim_dev/attach/57736afaaba5c/if_mzscheme5.diff?part=0.1&authuser=0" -o fix_mzscheme.diff
 git apply --check fix_mzscheme.diff && git apply fix_mzscheme.diff || exit 1
 curl -f -L https://mirror.racket-lang.org/releases/6.3/installers/racket-minimal-6.3-x86_64-win32.exe -o racket.exe
 start /wait racket.exe /S