diff --git a/grid_map_cv/include/grid_map_cv/utilities.hpp b/grid_map_cv/include/grid_map_cv/utilities.hpp
index ca1e9ea8c..04aafe928 100644
--- a/grid_map_cv/include/grid_map_cv/utilities.hpp
+++ b/grid_map_cv/include/grid_map_cv/utilities.hpp
@@ -42,7 +42,10 @@ class ParameterReader
   {
     rclcpp::Parameter param;
 
-    params_interface_->declare_parameter(param_prefix_ + name, param_type);
+    if (!params_interface_->has_parameter(param_prefix_ + name))
+    {
+      params_interface_->declare_parameter(param_prefix_ + name, param_type);
+    }
     params_interface_->get_parameter(param_prefix_ + name, param);
 
     if (param.get_type() != param_type) {