diff --git a/Programming-Guide.md b/Programming-Guide.md
index 23b0890..266930f 100644
--- a/Programming-Guide.md
+++ b/Programming-Guide.md
@@ -168,4 +168,4 @@ Ctx.INSTANCE.removeListener(temperatureKey, display);
 Ctx.INSTANCE.put(temperatureKey, 30); // no notification after listener removed
 ```
 ---
-[[Home]] | [[API Reference]] | [[Design and Architecture]] | [[FAQ]]
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+[[Home]] | [[API Reference]] | [[Design and Architecture]] | [[FAQ]] | [[Contributing]]
\ No newline at end of file