diff --git a/components/graph/index.js b/components/graph/index.js
index 8270a88..e898499 100644
--- a/components/graph/index.js
+++ b/components/graph/index.js
@@ -555,6 +555,9 @@ class Graph extends React.Component {
 
 		const connectedNodeKeys = new Set();
 		edges.forEach(edge => {
+			if (edge.type === 'monitorSource') {
+				return;
+			}
 			connectedNodeKeys.add(edge.source);
 			connectedNodeKeys.add(edge.target);
 		});
diff --git a/components/preferences/index.js b/components/preferences/index.js
index ce14cc3..602570b 100644
--- a/components/preferences/index.js
+++ b/components/preferences/index.js
@@ -84,8 +84,8 @@ class Preferences extends React.Component {
 
 			r.div([
 				r(Checkbox, {
-					checked: this.props.preferences.hideDisconnectedSource,
-					onChange: () => this.props.actions.toggle('hideDisconnectedSource'),
+					checked: this.props.preferences.hideDisconnectedSources,
+					onChange: () => this.props.actions.toggle('hideDisconnectedSources'),
 				}, 'Hide disconnected source'),
 			]),