diff --git a/README.md b/README.md
index b06375e6..3ec87126 100644
--- a/README.md
+++ b/README.md
@@ -108,7 +108,7 @@ Build and run using DUB:
 
         git clone https://github.com/buggins/dlangui.git
         cd dlangui
-        dub run dlangui:example1
+        dub run dlangui:example1 --build=release
 
 
 To develop using Visual-D, download sources for dlabgui and dependencies into some directory:
diff --git a/examples/example1/dub.json b/examples/example1/dub.json
index 163d8ea6..677b5c53 100644
--- a/examples/example1/dub.json
+++ b/examples/example1/dub.json
@@ -72,6 +72,12 @@
          "src/main.d"
     ],
 
+    "excludedSourceFiles": [
+         "../../src/api.d",
+         "../../src/index.d",
+         "../../src/screenshots.d"
+    ],
+
     "copyFiles-windows": [
         "../../lib/FreeImage.dll"
     ],