diff --git a/scripts/lib/utils.js b/scripts/lib/utils.js
index 2e8550e5e..cc2b6c21e 100644
--- a/scripts/lib/utils.js
+++ b/scripts/lib/utils.js
@@ -552,7 +552,8 @@ function isGitRepo() {
 function getGitModifiedFiles(patterns = []) {
   if (!isGitRepo()) return [];
 
-  const result = runCommand('git diff --name-only HEAD');
+  // Paths from the repository root even when diff.relative is set.
+  const result = runCommand('git -c diff.relative=false diff --name-only HEAD');
   if (!result.success) return [];
 
   let files = result.output.split('\n').filter(Boolean);
diff --git a/tests/hooks/hooks.test.js b/tests/hooks/hooks.test.js
index 71eb2e8ca..af257f8e0 100644
--- a/tests/hooks/hooks.test.js
+++ b/tests/hooks/hooks.test.js
@@ -1217,6 +1217,11 @@ async function runTests() {
         const result = await runScript(path.join(scriptsDir, 'check-console-log.js'), '{}', {}, appDir);
         assert.strictEqual(result.code, 0);
         assert.ok(result.stderr.includes('console.log found in packages/app/src/a.ts'), `Should warn about the file, got: ${result.stderr}`);
+
+        // diff.relative would make git report paths from the session's directory.
+        execFileSync('git', ['config', 'diff.relative', 'true'], { cwd: repo });
+        const relative = await runScript(path.join(scriptsDir, 'check-console-log.js'), '{}', {}, appDir);
+        assert.ok(relative.stderr.includes('console.log found in packages/app/src/a.ts'), `Should warn with diff.relative, got: ${relative.stderr}`);
       } finally {
         fs.rmSync(repo, { recursive: true, force: true });
       }