diff --git a/pssecret_server/models.py b/pssecret_server/models.py
index aa64d3e..3298354 100644
--- a/pssecret_server/models.py
+++ b/pssecret_server/models.py
@@ -2,7 +2,7 @@ from pydantic import BaseModel, Field
 
 
 class Secret(BaseModel):
-    data: str = Field(title="Secret", description="Some secret data")
+    data: str = Field(title="Secret", description="Some secret data", min_length=1)
 
 
 class SecretSaveResult(BaseModel):
diff --git a/pssecret_server/settings.py b/pssecret_server/settings.py
index ae7fffe..86ffa9c 100644
--- a/pssecret_server/settings.py
+++ b/pssecret_server/settings.py
@@ -3,7 +3,7 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
 class Settings(BaseSettings):
-    model_config = SettingsConfigDict(env_file=".env")
+    model_config = SettingsConfigDict(env_file=".env", extra="ignore")
 
     redis_url: RedisDsn = RedisDsn("redis://localhost")
     secrets_encryption_key: bytes