diff --git a/bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java b/bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java
index 0dfc76dfe..f1882fbbe 100644
--- a/bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java
+++ b/bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java
@@ -1,7 +1,5 @@
 package org.briarproject.bramble.contact;
 
-import com.sun.tools.javac.jvm.Gen;
-
 import org.briarproject.bramble.api.FormatException;
 import org.briarproject.bramble.api.Pair;
 import org.briarproject.bramble.api.contact.Contact;