diff --git a/samtranslator/model/api/api_generator.py b/samtranslator/model/api/api_generator.py
index e9b12461a..6ac0e8334 100644
--- a/samtranslator/model/api/api_generator.py
+++ b/samtranslator/model/api/api_generator.py
@@ -41,6 +41,8 @@
 
 LOG = logging.getLogger(__name__)
 
+FEATURE_FLAG_NORMALIZED_OPENAPI_VERSION = "normalized_open_api_version"
+
 _CORS_WILDCARD = "'*'"
 CorsProperties = namedtuple(
     "CorsProperties", ["AllowMethods", "AllowHeaders", "AllowOrigin", "MaxAge", "AllowCredentials"]
@@ -1127,7 +1129,7 @@ def _openapi_postprocess(self, definition_body: Dict[str, Any]) -> Dict[str, Any
         if definition_body.get("swagger") is not None:
             return definition_body
 
-        if self.feature_toggle and self.feature_toggle.is_enabled("normalized_open_api_version"):
+        if self.feature_toggle and self.feature_toggle.is_enabled(FEATURE_FLAG_NORMALIZED_OPENAPI_VERSION):
             normalized_open_api_version = definition_body.get("openapi", self.open_api_version)
         elif definition_body.get("openapi") is not None and self.open_api_version is None:
             normalized_open_api_version = definition_body.get("openapi")