diff --git a/script/api_protobuf/api_protobuf.py b/script/api_protobuf/api_protobuf.py
index 9a55f1d136..487c187372 100755
--- a/script/api_protobuf/api_protobuf.py
+++ b/script/api_protobuf/api_protobuf.py
@@ -1415,8 +1415,6 @@ class RepeatedTypeInfo(TypeInfo):
         # Check if this is a pointer field by looking for container_pointer option
         self._container_type = get_field_opt(field, pb.container_pointer, "")
         self._use_pointer = bool(self._container_type)
-        # Check if this should use FixedVector instead of std::vector
-        self._use_fixed_vector = get_field_opt(field, pb.fixed_vector, False)
 
         # For repeated fields, we need to get the base type info
         # but we can't call create_field_type_info as it would cause recursion
@@ -1440,8 +1438,6 @@ class RepeatedTypeInfo(TypeInfo):
             if "<" in self._container_type and ">" in self._container_type:
                 return f"const {self._container_type}*"
             return f"const {self._container_type}<{self._ti.cpp_type}>*"
-        if self._use_fixed_vector:
-            return f"FixedVector<{self._ti.cpp_type}>"
         return f"std::vector<{self._ti.cpp_type}>"
 
     @property