diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 0a55d535..7f37354e 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -20,7 +20,7 @@ jobs:
         path: sbcl
     - uses: msys2/setup-msys2@v2
       with:
-        install: mingw-w64-x86_64-gcc make diffutils git python3
+        install: mingw-w64-x86_64-gcc make diffutils git python3 dos2unix
 
     - name: install host sbcl
       shell: pwsh
@@ -34,6 +34,7 @@ jobs:
       run: |
         PATH=$PATH:"/c/Program Files/Steel Bank Common Lisp/1.4.14"
         export PATH
+        unix2dos ../sbcl-librarian/.github/workflows/non-static-lossage-handler-win32.patch
         git apply ../sbcl-librarian/.github/workflows/non-static-lossage-handler-win32.patch
         ./make.sh --xc-host='sbcl --lose-on-corruption --disable-ldb --disable-debugger' --with-sb-linkable-runtime
     - name: install quicklisp