diff --git a/scripts/uninstall.js b/scripts/uninstall.js
index d67e92fdc..8bb93d698 100644
--- a/scripts/uninstall.js
+++ b/scripts/uninstall.js
@@ -34,6 +34,7 @@ for (const dir of [path.join(getClaudeDir(), 'ponytail-modes'), path.join(os.hom
   }
 }
 removeIfExists(path.join(process.env.CODEBUDDY_CONFIG_DIR || path.join(os.homedir(), '.codebuddy'), '.ponytail-active'), 'CodeBuddy mode flag');
+removeIfExists(path.join(process.env.XDG_CONFIG_HOME || path.join(os.homedir(), '.config'), 'opencode', '.ponytail-active'), 'OpenCode mode flag');
 removeIfExists(getConfigPath(), 'config file');
 // Statusline script copies the activate hook keeps in the config dir (#1032).
 for (const name of ['ponytail-statusline.sh', 'ponytail-statusline.ps1']) {
diff --git a/tests/uninstall.test.js b/tests/uninstall.test.js
index f4620ad66..81ee330cc 100644
--- a/tests/uninstall.test.js
+++ b/tests/uninstall.test.js
@@ -37,6 +37,12 @@ const qoderCustomFlagPath = path.join(qoderCustomDir, '.ponytail-active');
 fs.mkdirSync(qoderCustomDir, { recursive: true });
 fs.writeFileSync(qoderCustomFlagPath, 'lite');
 
+// OpenCode keeps its flag beside its own config; a leftover "off" would start a
+// reinstall switched off.
+const opencodeFlagPath = path.join(temp, 'config-home', 'opencode', '.ponytail-active');
+fs.mkdirSync(path.dirname(opencodeFlagPath), { recursive: true });
+fs.writeFileSync(opencodeFlagPath, 'off');
+
 const nudgeFlagPath = path.join(claudeDir, '.ponytail-statusline-nudged');
 fs.writeFileSync(nudgeFlagPath, '');
 
@@ -84,6 +90,7 @@ let result = runUninstall(env);
 assert.equal(result.status, 0, result.stderr);
 assert.equal(fs.existsSync(flagPath), false, 'mode flag must be removed');
 assert.equal(fs.existsSync(qoderFlagPath), false, 'Qoder mode flag must be removed');
+assert.equal(fs.existsSync(opencodeFlagPath), false, 'OpenCode mode flag must be removed');
 assert.equal(fs.existsSync(qoderCustomFlagPath), true, 'default Qoder uninstall must not touch a separate custom config');
 assert.equal(fs.existsSync(nudgeFlagPath), false, 'statusline nudge flag must be removed');
 assert.equal(fs.existsSync(configPath), false, 'config file must be removed');