diff --git a/.github/workflows/sapling-cli-windows-amd64-release.yml b/.github/workflows/sapling-cli-windows-amd64-release.yml
index 4934203f8e0da..9dcc8571d1a85 100644
--- a/.github/workflows/sapling-cli-windows-amd64-release.yml
+++ b/.github/workflows/sapling-cli-windows-amd64-release.yml
@@ -15,6 +15,8 @@ jobs:
       run: git config --global --add safe.directory "$PWD"
     - name: rustup
       run: rustup default stable
+    - name: Support longpaths
+      run: git config --system core.longpaths true
     - name: openssl
       run: vcpkg install openssl:x64-windows-static-md
     - name: integrate vcpkg
diff --git a/ci/gen_workflows.py b/ci/gen_workflows.py
index 7724715ce958c..fa686dcbc69b1 100755
--- a/ci/gen_workflows.py
+++ b/ci/gen_workflows.py
@@ -297,6 +297,10 @@ def gen_windows_release(self) -> str:
                 {"name": "Checkout Code", "uses": "actions/checkout@v3"},
                 grant_repo_access(),
                 {"name": "rustup", "run": "rustup default stable"},
+                {
+                    "name": "Support longpaths",
+                    "run": "git config --system core.longpaths true",
+                },
                 # The "x64-windows-static-md" triple is what the Rust openssl
                 # crate expects on Windows when it goes looking for the vcpkg
                 # install.