diff --git a/src/font/font-demo.cpp b/src/font/font-demo.cpp
index f8fade7f0..4d3a64ca9 100644
--- a/src/font/font-demo.cpp
+++ b/src/font/font-demo.cpp
@@ -65,6 +65,7 @@ void setup_gui(cv::Ptr<kb::viz2d::Viz2D> v2d) {
         text_color[1] = c[1];
         text_color[2] = c[2];
     });
+
     v2d->makeFormVariable("Alpha", text_alpha, 0.0f, 1.0f, true, "", "The opacity of the text");
 
     v2d->makeGroup("Stars");
@@ -93,9 +94,11 @@ void setup_gui(cv::Ptr<kb::viz2d::Viz2D> v2d) {
 
     v2d->makeGroup("Display");
     v2d->makeFormVariable("Show FPS", show_fps, "Enable or disable the On-screen FPS display");
-//    v2d->makeButton("Fullscreen", [=]() {
-//        v2d->setFullscreen(!v2d->isFullscreen());
-//    });
+#ifndef __EMSCRIPTEN__
+    v2d->makeButton("Fullscreen", [=]() {
+        v2d->setFullscreen(!v2d->isFullscreen());
+    });
+#endif
     v2d->makeButton("Offscreen", [=]() {
         v2d->setOffscreen(!v2d->isOffscreen());
     });
diff --git a/src/quad/quad-demo.cpp b/src/quad/quad-demo.cpp
index 0048305e9..93b5a1c1a 100644
--- a/src/quad/quad-demo.cpp
+++ b/src/quad/quad-demo.cpp
@@ -7,7 +7,7 @@ constexpr long unsigned int WIDTH = 1920;
 constexpr long unsigned int HEIGHT = 1080;
 constexpr double FPS = 60;
 constexpr bool OFFSCREEN = false;
-constexpr const char* OUTPUT_FILENAME = "tetra-demo.mkv";
+constexpr const char* OUTPUT_FILENAME = "quad-demo.mkv";
 constexpr const int VA_HW_DEVICE_INDEX = 0;
 const unsigned long DIAG = hypot(double(WIDTH), double(HEIGHT));