diff --git a/CHANGES/9265.misc b/CHANGES/9265.misc
new file mode 100644
index 0000000000..9aecf40585
--- /dev/null
+++ b/CHANGES/9265.misc
@@ -0,0 +1,2 @@
+Removing OpenAPI blank enums
+(backported from #9056)
diff --git a/pulpcore/app/settings.py b/pulpcore/app/settings.py
index 8a544803a8..89a15e0b95 100644
--- a/pulpcore/app/settings.py
+++ b/pulpcore/app/settings.py
@@ -250,6 +250,7 @@
     "SERVE_URLCONF": ROOT_URLCONF,
     "DEFAULT_GENERATOR_CLASS": "pulpcore.openapi.PulpSchemaGenerator",
     "DEFAULT_SCHEMA_CLASS": "pulpcore.openapi.PulpAutoSchema",
+    "ENUM_ADD_EXPLICIT_BLANK_NULL_CHOICE": False,
     "COMPONENT_SPLIT_REQUEST": True,
     "COMPONENT_NO_READ_ONLY_REQUIRED": True,
     "GENERIC_ADDITIONAL_PROPERTIES": None,