diff --git a/bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java b/bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
index 9f31b1da0b2f88f87fd89957994db7f5ea733bb8..015056b49b8861fd86192becb8f73823e41b0442 100644
--- a/bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
+++ b/bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
@@ -189,6 +189,8 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		if (used.getAndSet(true)) throw new IllegalStateException();
 		// Install or update the assets if necessary
 		if (!assetsAreUpToDate()) installAssets();
+		if (cookieFile.exists() && !cookieFile.delete())
+			LOG.warning("Old auth cookie not deleted");
 		// Start a new Tor process
 		LOG.info("Starting Tor");
 		String torPath = torFile.getAbsolutePath();