diff --git a/Dockerfile b/Dockerfile
index 0365070..9b7502d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,6 @@ COPY ./scripts/docker_entrypoint.sh /docker_entrypoint.sh
 RUN chmod +x /docker_entrypoint.sh
 
 ENV LOG_LEVEL=INFO
-ENV USE_DIAL_FILE_STORAGE=True
 EXPOSE 5000
 
 USER appuser
diff --git a/README.md b/README.md
index 57dcbd0..f66b71d 100644
--- a/README.md
+++ b/README.md
@@ -64,9 +64,9 @@ Copy `.env.example` to `.env` and customize it for your environment:
 |DEFAULT_REGION||AWS region e.g. "us-east-1"|
 |LOG_LEVEL|INFO|Log level. Use DEBUG for dev purposes and INFO in prod|
 |AIDIAL_LOG_LEVEL|WARNING|AI DIAL SDK log level|
-|USE_DIAL_FILE_STORAGE|False|Save model artifacts to DIAL File storage (particularly, Stability images are uploaded to the files storage and their base64 encodings are replaced with links to the storage)|
-|DIAL_URL||URL of the core DIAL server|
-|DIAL_BEDROCK_API_KEY||API Key for DIAL File storage|
+|DIAL_USE_FILE_STORAGE|False|Save model artifacts to DIAL File storage (particularly, Stability images are uploaded to the files storage and their base64 encodings are replaced with links to the storage)|
+|DIAL_URL||URL of the core DIAL server (required when DIAL_USE_FILE_STORAGE=True)|
+|DIAL_API_KEY||API Key for DIAL File storage (required when DIAL_USE_FILE_STORAGE=True)|
 |WEB_CONCURRENCY|1|Number of workers for the server|
 |TEST_SERVER_URL|http://0.0.0.0:5001|Server URL used in the integration tests|
 
diff --git a/aidial_adapter_bedrock/llm/model/stability.py b/aidial_adapter_bedrock/llm/model/stability.py
index 94b73ee..7c6fa6f 100644
--- a/aidial_adapter_bedrock/llm/model/stability.py
+++ b/aidial_adapter_bedrock/llm/model/stability.py
@@ -93,13 +93,13 @@ async def save_to_storage(
     return attachment
 
 
-USE_DIAL_FILE_STORAGE = (
-    os.getenv("USE_DIAL_FILE_STORAGE", "false").lower() == "true"
+DIAL_USE_FILE_STORAGE = (
+    os.getenv("DIAL_USE_FILE_STORAGE", "false").lower() == "true"
 )
 
-if USE_DIAL_FILE_STORAGE:
+if DIAL_USE_FILE_STORAGE:
     DIAL_URL = get_env("DIAL_URL")
-    DIAL_BEDROCK_API_KEY = get_env("DIAL_BEDROCK_API_KEY")
+    DIAL_API_KEY = get_env("DIAL_API_KEY")
 
 
 class StabilityAdapter(ChatModel):
@@ -111,10 +111,10 @@ def __init__(self, client: Bedrock, model: str):
         self.client = client
         self.storage = None
 
-        if USE_DIAL_FILE_STORAGE:
+        if DIAL_USE_FILE_STORAGE:
             self.storage = FileStorage(
                 dial_url=DIAL_URL,
-                api_key=DIAL_BEDROCK_API_KEY,
+                api_key=DIAL_API_KEY,
                 base_dir="stability",
             )