diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1742bc670a..4c6526dfd2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ This is the log of notable changes to EAS CLI and related packages.
 
 ### 🐛 Bug fixes
 
+- Strip permissions and other metadata from project archive when packing sources on Windows. ([#3234](https://github.com/expo/eas-cli/pull/3234) by [@sjchmiela](https://github.com/sjchmiela))
+
 ### 🧹 Chores
 
 - Document the default values for `track` and `releaseStatus`. ([#3229](https://github.com/expo/eas-cli/pull/3229) by [@kadikraman](https://github.com/kadikraman))
diff --git a/packages/eas-cli/src/build/utils/repository.ts b/packages/eas-cli/src/build/utils/repository.ts
index eb41b23af0..a7c04b6673 100644
--- a/packages/eas-cli/src/build/utils/repository.ts
+++ b/packages/eas-cli/src/build/utils/repository.ts
@@ -143,9 +143,17 @@ export async function makeProjectTarballAsync(vcsClient: Client): Promise<LocalF
 
   try {
     await vcsClient.makeShallowCopyAsync(shallowClonePath);
-    await tar.create({ cwd: shallowClonePath, file: tarPath, prefix: 'project', gzip: true }, [
-      '.',
-    ]);
+    await tar.create(
+      {
+        cwd: shallowClonePath,
+        file: tarPath,
+        prefix: 'project',
+        gzip: true,
+        // Use portable mode on Windows to ensure proper permissions when extracting on Unix/Linux
+        ...(process.platform === 'win32' && { portable: true }),
+      },
+      ['.']
+    );
   } catch (err) {
     clearTimeout(timer);
     if (spinner.isSpinning) {