diff --git a/README.md b/README.md
index 3fea02f4c..84974a281 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ There are two main predictions in the affinity output: `affinity_pred_value` and
 
 ## Authentication to MSA Server
 
-When using the `--use_msa_server` option with a server that requires authentication, you can provide credentials in one of two ways. More information is available in our [prediction instructions](docs/prediction.md).
+When using the `--use_msa_server` option with a server that requires authentication, you can provide credentials in one of two ways. More information is available in our [prediction instructions](docs/prediction.md#authentication-to-msa-server).
  
 ## Evaluation
 
diff --git a/src/boltz/main.py b/src/boltz/main.py
index 6bee2c458..791080d37 100644
--- a/src/boltz/main.py
+++ b/src/boltz/main.py
@@ -457,7 +457,6 @@ def compute_msa(
         key = api_key_header if api_key_header else "X-API-Key"
         value = api_key_value
         auth_headers = {
-            "Content-Type": "application/json",
             key: value
         }
         click.echo(f"Using API key authentication for MSA server (header: {key})")