diff --git a/tests/lib/session-aliases.test.js b/tests/lib/session-aliases.test.js
index 8e4b7226..11a4fa05 100644
--- a/tests/lib/session-aliases.test.js
+++ b/tests/lib/session-aliases.test.js
@@ -1230,8 +1230,8 @@ function runTests() {
     // session-aliases.js lines 131-137: When saveAliases fails (outer catch),
     // it tries to restore from backup. If the restore ALSO fails, the inner
     // catch at line 135 logs restoreErr. No existing test creates this double-fault.
-    if (process.platform === 'win32') {
-      console.log('    (skipped — chmod not reliable on Windows)');
+    if (process.platform === 'win32' || process.getuid?.() === 0) {
+      console.log('    (skipped — chmod ineffective on Windows/root)');
       return;
     }
     const isoHome = path.join(os.tmpdir(), `ecc-r90-restore-fail-${Date.now()}`);
diff --git a/tests/lib/session-manager.test.js b/tests/lib/session-manager.test.js
index a34447d7..bdf16417 100644
--- a/tests/lib/session-manager.test.js
+++ b/tests/lib/session-manager.test.js
@@ -2071,9 +2071,9 @@ file.ts
   // ── Round 112: appendSessionContent with read-only file — returns false ──
   console.log('\nRound 112: appendSessionContent (read-only file):');
   if (test('appendSessionContent returns false when file is read-only (EACCES)', () => {
-    if (process.platform === 'win32') {
-      // chmod doesn't work reliably on Windows — skip
-      assert.ok(true, 'Skipped on Windows');
+    if (process.platform === 'win32' || process.getuid?.() === 0) {
+      // chmod ineffective on Windows/root — skip
+      assert.ok(true, 'Skipped on Windows/root');
       return;
     }
     const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'r112-readonly-'));