diff --git a/tests/hostside/helper/java/com/android/microdroid/test/host/MicrodroidHostTestCaseBase.java b/tests/hostside/helper/java/com/android/microdroid/test/host/MicrodroidHostTestCaseBase.java
index 0b67719..2df829c 100644
--- a/tests/hostside/helper/java/com/android/microdroid/test/host/MicrodroidHostTestCaseBase.java
+++ b/tests/hostside/helper/java/com/android/microdroid/test/host/MicrodroidHostTestCaseBase.java
@@ -387,6 +387,9 @@
         long timeoutMillis = MICRODROID_ADB_CONNECT_TIMEOUT_MINUTES * 60 * 1000;
         long elapsed = 0;
 
+        // In case there is a stale connection...
+        tryRunOnHost("adb", "disconnect", MICRODROID_SERIAL);
+
         final String serial = androidDevice.getSerialNumber();
         final String from = "tcp:" + TEST_VM_ADB_PORT;
         final String to = "vsock:" + cid + ":5555";