diff --git a/Dockerfile b/Dockerfile
index bfdfb934d99907633722c02ff2c6d5f31d906017..91058b6e1cc012d8f53da9c33d1ee4b9a885162e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN pip install --upgrade pip \
     && pip install -r /opt/mc_openapi/requirements.txt
 WORKDIR /opt/mc_openapi
 
-ENV UVICORN_PORT=80 \
+ENV UVICORN_PORT=8080 \
     UVICORN_HOST=0.0.0.0
 
 CMD ["uvicorn", "--interface", "wsgi", "mc_openapi.app_config:app"]
diff --git a/README.md b/README.md
index 4c4b8601f9e28449055f8b757589cd8adabb5664..12333fd089a0b00d89c683d15378b51ff492c716 100644
--- a/README.md
+++ b/README.md
@@ -57,9 +57,9 @@ And then run it with
 ```sh
 docker run -d wp4/dmc
 ```
-The Uvicorn server will be running and listening on port 80 of the container.
+The Uvicorn server will be running and listening on port `8080` of the container.
 To use it locally, you may bind it with port `8080` of `localhost`
-by adding `-p 127.0.0.1:8080:80/tcp` to the `docker run` command.
+by adding `-p 127.0.0.1:8080:8080/tcp` to the `docker run` command.
 
 
 ## Building the Documentation
diff --git a/mc_openapi/doml_mc/xmi_parser/doml_model.py b/mc_openapi/doml_mc/xmi_parser/doml_model.py
index 7866e3403439d7337fe2d648109767f87f31da91..8aaf11b240e9b21e05aee2fbe78455ef74789822 100644
--- a/mc_openapi/doml_mc/xmi_parser/doml_model.py
+++ b/mc_openapi/doml_mc/xmi_parser/doml_model.py
@@ -62,7 +62,7 @@ def infer_domlx_version(raw_model: bytes) -> DOMLVersion:
         else:
             return DOMLVersion.V2_0  # Should be DOMLVersion.V1_0, but we use V2_0 because the 2.1 IDE doesn't fill it
     else:
-        raise RuntimeError(f"Supplied with malformed DOMLX model or unsupported DOML version.\nIn use version is: {DOMLVersion.V2_1}")
+        raise RuntimeError(f"Supplied with malformed DOMLX model or unsupported DOML version.\nIn use version is: {DOMLVersion.V2_0}")
 
 
 def parse_doml_model(raw_model: bytes, doml_version: Optional[DOMLVersion]) -> Tuple[IntermediateModel, DOMLVersion]: