diff --git a/apps/foo/src/main/java/org/onlab/onos/foo/IOLoopTestClient.java b/apps/foo/src/main/java/org/onlab/onos/foo/IOLoopTestClient.java
index 3ec8c07..302a0c7 100644
--- a/apps/foo/src/main/java/org/onlab/onos/foo/IOLoopTestClient.java
+++ b/apps/foo/src/main/java/org/onlab/onos/foo/IOLoopTestClient.java
@@ -233,7 +233,7 @@
         }
 
         @Override
-        protected void connect(SelectionKey key) {
+        protected void connect(SelectionKey key) throws IOException {
             super.connect(key);
             TestMessageStream b = (TestMessageStream) key.attachment();
             Worker w = ((CustomIOLoop) b.loop()).worker;