--- a/dom/media/tests/mochitest/test_peerConnection_multiple_captureStream_canvas_2d.html
+++ b/dom/media/tests/mochitest/test_peerConnection_multiple_captureStream_canvas_2d.html
@@ -62,17 +62,17 @@ runNetworkTest(() => {
                                      "pcRemote's remote2 should become blue")
                ]),
                Promise.all([
                  h.waitForPixelColor(vremote2, h.green, 128,
                                      "pcRemote's remote2 should become green"),
                  h.waitForPixelColor(vremote1, h.blue, 128,
                                      "pcRemote's remote1 should become blue")
                ])
-             ])
+             ]);
     },
     function DRAW_LOCAL1_RED() {
       // After requesting a frame it will be captured at the time of next render.
       // Next render will happen at next stable state, at the earliest,
       // i.e., this order of `requestFrame(); draw();` should work.
       stream1.requestFrame();
       h.drawColor(canvas1, h.red);
     },