diff --git a/cypress/e2e/widgets/layout.spec.ts b/cypress/e2e/widgets/layout.spec.ts
index 16470fd5a0be89937a3639586e79db96ea51f0e7..fd6f50c1e0e8e88a62d974c2783de8e9ed7f344b 100644
--- a/cypress/e2e/widgets/layout.spec.ts
+++ b/cypress/e2e/widgets/layout.spec.ts
@@ -129,4 +129,20 @@ describe("Widget Layout", () => {
 
         cy.get('iframe[title="widget"]').invoke("height").should("be.greaterThan", 400);
     });
+    it("open right panel with chat when maximizing widget", () => {
+        cy.get('iframe[title="widget"]').invoke("height").should("be.lessThan", 250);
+        cy.findByRole("button", { name: "Maximise" }).click();
+        cy.get(".mx_RightPanel").within(() => {
+            cy.get(".mx_BaseCard_header").should("contain", "Chat");
+        });
+    });
+    it("close right panel with chat when unmaximizing widget", () => {
+        cy.get('iframe[title="widget"]').invoke("height").should("be.lessThan", 250);
+        cy.findByRole("button", { name: "Maximise" }).click();
+        cy.get(".mx_RightPanel").within(() => {
+            cy.get(".mx_BaseCard_header").should("contain", "Chat");
+        });
+        cy.findByRole("button", { name: "Un-maximise" }).click();
+        cy.get(".mx_RightPanel").should("not.exist");
+    });
 });
diff --git a/res/css/views/rooms/_MemberList.pcss b/res/css/views/rooms/_MemberList.pcss
index 36010d6200768609f3595afe68d375a46fe5878b..716d8f2b2654e9d88ea1decc65879d77d77090e1 100644
--- a/res/css/views/rooms/_MemberList.pcss
+++ b/res/css/views/rooms/_MemberList.pcss
@@ -78,5 +78,5 @@ limitations under the License.
 
 .mx_MemberList_invite {
     margin: 0 var(--cpd-space-2x);
-    width: calc(100% - var(--cpd-space-2x));
+    width: calc(100% - var(--cpd-space-4x));
 }
diff --git a/src/components/structures/RoomView.tsx b/src/components/structures/RoomView.tsx
index 8ca3cd42763ebc641665c76ca6991b9ce7d55df8..408c5e40a5ad5f9315abfa918837d6ca1a88f1fe 100644
--- a/src/components/structures/RoomView.tsx
+++ b/src/components/structures/RoomView.tsx
@@ -539,6 +539,9 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
         if (this.context.widgetLayoutStore.hasMaximisedWidget(this.state.room)) {
             // Show chat in right panel when a widget is maximised
             this.context.rightPanelStore.setCard({ phase: RightPanelPhases.Timeline });
+        } else {
+            // Close the chat in right panel when the widget is unmaximised
+            this.context.rightPanelStore.togglePanel(null);
         }
         this.checkWidgets(this.state.room);
     };
diff --git a/src/stores/widgets/StopGapWidgetDriver.ts b/src/stores/widgets/StopGapWidgetDriver.ts
index 6c87cb43376e997049e17c30a2463d11c7b4d81f..c2453ebccf4fafdab0ebd084088c01132cfddd77 100644
--- a/src/stores/widgets/StopGapWidgetDriver.ts
+++ b/src/stores/widgets/StopGapWidgetDriver.ts
@@ -150,7 +150,7 @@ export class StopGapWidgetDriver extends WidgetDriver {
                 WidgetEventCapability.forStateEvent(EventDirection.Receive, "org.matrix.msc3401.call.member").raw,
             );
 
-            const sendRecvRoomEvents = ["io.element.call.encryption_key"];
+            const sendRecvRoomEvents = ["io.element.call.encryption_keys"];
             for (const eventType of sendRecvRoomEvents) {
                 this.allowedCapabilities.add(WidgetEventCapability.forRoomEvent(EventDirection.Send, eventType).raw);
                 this.allowedCapabilities.add(WidgetEventCapability.forRoomEvent(EventDirection.Receive, eventType).raw);