diff --git a/include/fmi4cpp/fmi2/xml/model_variables.hpp b/include/fmi4cpp/fmi2/xml/model_variables.hpp
index 8e3b342..cd70e62 100644
--- a/include/fmi4cpp/fmi2/xml/model_variables.hpp
+++ b/include/fmi4cpp/fmi2/xml/model_variables.hpp
@@ -41,8 +41,6 @@ private:
     const std::vector<scalar_variable> variables_;
 
 public:
-    model_variables();
-
     explicit model_variables(std::vector<scalar_variable>  variables);
 
     [[nodiscard]] size_t size() const;
diff --git a/src/fmi4cpp/fmi2/xml/model_variables.cpp b/src/fmi4cpp/fmi2/xml/model_variables.cpp
index d262aa9..a6643f7 100644
--- a/src/fmi4cpp/fmi2/xml/model_variables.cpp
+++ b/src/fmi4cpp/fmi2/xml/model_variables.cpp
@@ -30,8 +30,6 @@
 
 using namespace fmi4cpp::fmi2;
 
-model_variables::model_variables() = default;
-
 model_variables::model_variables(std::vector<scalar_variable> variables)
     : variables_(std::move(variables))
 {}