diff --git a/dist/index.js b/dist/index.js
index 9d959a9..a002ab1 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -711,9 +711,13 @@ class GitCommandManager {
     getWorkingDirectory() {
         return this.workingDirectory;
     }
-    init() {
+    init(options) {
         return __awaiter(this, void 0, void 0, function* () {
-            yield this.execGit(['init', this.workingDirectory]);
+            yield this.execGit([
+                'init',
+                ...((options === null || options === void 0 ? void 0 : options.objectFormat) ? [`--object-format=${options.objectFormat}`] : []),
+                this.workingDirectory
+            ]);
         });
     }
     isDetached() {
@@ -1238,7 +1242,7 @@ function getSource(settings) {
             // Initialize the repository
             if (!fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))) {
                 core.startGroup('Initializing the repository');
-                yield git.init();
+                yield git.init({ objectFormat: settings.objectFormat });
                 yield git.remoteAdd('origin', repositoryUrl);
                 core.endGroup();
             }
diff --git a/src/git-command-manager.ts b/src/git-command-manager.ts
index 8e42a38..f19952e 100644
--- a/src/git-command-manager.ts
+++ b/src/git-command-manager.ts
@@ -42,7 +42,7 @@ export interface IGitCommandManager {
   ): Promise<void>
   getDefaultBranch(repositoryUrl: string): Promise<string>
   getWorkingDirectory(): string
-  init(): Promise<void>
+  init(options?: { objectFormat?: string }): Promise<void>
   isDetached(): Promise<boolean>
   lfsFetch(ref: string): Promise<void>
   lfsInstall(): Promise<void>
@@ -327,8 +327,12 @@ class GitCommandManager {
     return this.workingDirectory
   }
 
-  async init(): Promise<void> {
-    await this.execGit(['init', this.workingDirectory])
+  async init(options?: { objectFormat?: string }): Promise<void> {
+    await this.execGit([
+      'init',
+      ...(options?.objectFormat ? [`--object-format=${options.objectFormat}`] : []),
+      this.workingDirectory
+    ])
   }
 
   async isDetached(): Promise<boolean> {
diff --git a/src/git-source-provider.ts b/src/git-source-provider.ts
index f723d94..639aeb6 100644
--- a/src/git-source-provider.ts
+++ b/src/git-source-provider.ts
@@ -110,7 +110,7 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
       !fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))
     ) {
       core.startGroup('Initializing the repository')
-      await git.init()
+      await git.init({ objectFormat: settings.objectFormat })
       await git.remoteAdd('origin', repositoryUrl)
       core.endGroup()
     }
diff --git a/src/git-source-settings.ts b/src/git-source-settings.ts
index 4e41ac3..f26e83f 100644
--- a/src/git-source-settings.ts
+++ b/src/git-source-settings.ts
@@ -118,4 +118,9 @@ export interface IGitSourceSettings {
    * User override on the GitHub Server/Host URL that hosts the repository to be cloned
    */
   githubServerUrl: string | undefined
+
+  /**
+   * Object format used for the repo, if it is not default
+   */
+  objectFormat: string | undefined
 }