diff --git a/4-development/4.4-sdk/4.4.1-sidechain-sdk.md b/4-development/4.4-sdk/4.4.1-sidechain-sdk.md
index 4b3c69b..be0375e 100644
--- a/4-development/4.4-sdk/4.4.1-sidechain-sdk.md
+++ b/4-development/4.4-sdk/4.4.1-sidechain-sdk.md
@@ -5,7 +5,7 @@
 1. Experiment with the template, running the [sidechain demo](../4.6-demos/4.6.1-sidechain-demo.md)​.
 2. Fork the worker repository `https://github.com/integritee-network/worker.git` from the SDK release branch (`sdk-v0.10.0-polkadot-v0.9.27`).
 3. Build the worker in [sidechain mode](4.4.1-sidechain-sdk.md#building-the-worker-in-sidechain-validateer-mode-a-hrefbuild-sidechain-mode-idbuild-sidechain-modea).
-4. Write and integrate your own [#business-logic-stf](4.4.1-sidechain-sdk.md#business-logic-stf "mention"), e.g. in a substrate pallet.
+4. Write and integrate your own [#business-logic-stf](4.4.4-custom-business-logic-stf/), e.g. in a substrate pallet.
 5. Deploy on the [Integritee parachain](4.4.7-integritee-parachain-integration.md) or your own testnet.
 
 ### **Building the worker in sidechain validateer mode** <a href="#build-sidechain-mode" id="build-sidechain-mode"></a>
@@ -30,7 +30,7 @@ docker build -t integritee-worker --target deployed-worker --build-arg WORKER_MO
 
 #### **Business logic / STF**
 
-This is the core part of the code changes necessary to turn the generic worker into your specific use-case. Read more in [#business-logic-stf](4.4.1-sidechain-sdk.md#business-logic-stf "mention").
+This is the core part of the code changes necessary to turn the generic worker into your specific use-case. Read more in [#business-logic-stf](4.4.4-custom-business-logic-stf/).
 
 #### **RPC Interface**