diff --git a/common/changes/office-ui-fabric-react/Nav_2018-03-03-08-32.json b/common/changes/office-ui-fabric-react/Nav_2018-03-03-08-32.json
new file mode 100644
index 00000000000000..756a4f897a7402
--- /dev/null
+++ b/common/changes/office-ui-fabric-react/Nav_2018-03-03-08-32.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "office-ui-fabric-react",
+      "comment": "Nav: Wire nav link to expand/collapse behavior if it has no URL but has children.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "office-ui-fabric-react",
+  "email": "s@warmsea.net"
+}
diff --git a/packages/office-ui-fabric-react/src/components/Nav/Nav.base.tsx b/packages/office-ui-fabric-react/src/components/Nav/Nav.base.tsx
index 831c408bac8213..75ba494ceb838e 100644
--- a/packages/office-ui-fabric-react/src/components/Nav/Nav.base.tsx
+++ b/packages/office-ui-fabric-react/src/components/Nav/Nav.base.tsx
@@ -305,6 +305,9 @@ export class NavBase extends BaseComponent<INavProps, INavState> implements INav
     if (this.props.onLinkClick) {
       this.props.onLinkClick(ev, link);
     }
+    if (!link.url && link.links && link.links.length > 0) {
+      this._onLinkExpandClicked(link, ev);
+    }
 
     this.setState({ selectedKey: link.key });
   }
@@ -313,6 +316,9 @@ export class NavBase extends BaseComponent<INavProps, INavState> implements INav
     if (link.onClick) {
       link.onClick(ev, link);
     }
+    if (!link.url && link.links && link.links.length > 0) {
+      this._onLinkExpandClicked(link, ev);
+    }
 
     this.setState({ selectedKey: link.key });
   }