diff --git a/BUILD.gn b/BUILD.gn
index 0a87f3c3ce..20ebfae76a 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1713,6 +1713,7 @@ if (skia_enable_tools) {
       ":etc1",
       ":flags",
       ":skia",
+      ":skia.h",
       ":tool_utils",
       "modules/skottie",
       "modules/skottie:gm",
diff --git a/gm/fiddle.cpp b/gm/fiddle.cpp
new file mode 100644
index 0000000000..dd57f2faf1
--- /dev/null
+++ b/gm/fiddle.cpp
@@ -0,0 +1,15 @@
+/*
+ * Copyright 2019 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gm/gm.h"
+#include "skia.h"
+
+static void draw(SkCanvas* canvas);
+DEF_SIMPLE_GM(fiddle, canvas, 256, 256) { draw(canvas); }
+
+// Paste your fiddle.skia.org code over this stub.
+void draw(SkCanvas*) {}
diff --git a/gn/gm.gni b/gn/gm.gni
index dc29b50d88..b1434411c2 100644
--- a/gn/gm.gni
+++ b/gn/gm.gni
@@ -152,6 +152,7 @@ gm_sources = [
   "$_gm/extractbitmap.cpp",
   "$_gm/fadefilter.cpp",
   "$_gm/fatpathfill.cpp",
+  "$_gm/fiddle.cpp",
   "$_gm/filltypes.cpp",
   "$_gm/filltypespersp.cpp",
   "$_gm/filterbitmap.cpp",