diff --git a/agent.go b/agent.go
index fa688b4..0ad6ff2 100644
--- a/agent.go
+++ b/agent.go
@@ -435,6 +435,7 @@ func (a *Agent) connectivityChecks() {
 					a.updateConnectionState(ConnectionStateFailed)
 					return
 				}
+			default:
 			}
 
 			a.selector.ContactCandidates()
diff --git a/agent_test.go b/agent_test.go
index e6e07c4..ba24f53 100644
--- a/agent_test.go
+++ b/agent_test.go
@@ -582,6 +582,7 @@ func TestConnectionStateCallback(t *testing.T) {
 			close(isFailed)
 		case ConnectionStateClosed:
 			close(isClosed)
+		default:
 		}
 	})
 	if err != nil {
@@ -1161,9 +1162,9 @@ func TestConnectionStateConnectingToFailed(t *testing.T) {
 			isFailed.Done()
 		case ConnectionStateChecking:
 			isChecking.Done()
-		case ConnectionStateConnected:
 		case ConnectionStateCompleted:
 			t.Errorf("Unexpected ConnectionState: %v", c)
+		default:
 		}
 	}
 
@@ -1357,6 +1358,7 @@ func TestCloseInConnectionStateCallback(t *testing.T) {
 			assert.NoError(t, aAgent.Close())
 		case ConnectionStateClosed:
 			close(isClosed)
+		default:
 		}
 	})
 	if err != nil {
@@ -1513,6 +1515,7 @@ func TestLiteLifecycle(t *testing.T) {
 			close(bDisconnected)
 		case ConnectionStateFailed:
 			close(bFailed)
+		default:
 		}
 	}))
 
diff --git a/ice.go b/ice.go
index 441420b..bd55120 100644
--- a/ice.go
+++ b/ice.go
@@ -9,7 +9,7 @@ type ConnectionState int
 // List of supported States
 const (
 	// ConnectionStateUnknown represents an unknown state
-	ConnectionStateUnknown = iota
+	ConnectionStateUnknown ConnectionState = iota
 
 	// ConnectionStateNew ICE agent is gathering addresses
 	ConnectionStateNew