diff --git a/src/cpp/lpnamer/problem_modifier/ProblemVariablesFileAdapter.h b/src/cpp/lpnamer/problem_modifier/ProblemVariablesFileAdapter.h
index 295fbd870..2825de683 100644
--- a/src/cpp/lpnamer/problem_modifier/ProblemVariablesFileAdapter.h
+++ b/src/cpp/lpnamer/problem_modifier/ProblemVariablesFileAdapter.h
@@ -9,13 +9,13 @@
 class ProblemVariablesFileAdapter : public IProblemVariablesProviderPort {
  public:
   ProblemVariablesFileAdapter(
-      ProblemData data, std::vector<struct ActiveLink> vector_1,
+      ProblemData data, std::vector<ActiveLink> vector_1,
       std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger>
           shared_ptr_1,
       std::filesystem::path path);
   ProblemVariables Provide() override;
   const ProblemData problem_data_;
-  const std::vector<struct ActiveLink> active_links_;
+  const std::vector<ActiveLink> active_links_;
   std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger> logger_;
   void extract_variables(
       const std::filesystem::path& file, std::vector<std::string>& var_names,
diff --git a/src/cpp/lpnamer/problem_modifier/ProblemVariablesFromProblemAdapter.h b/src/cpp/lpnamer/problem_modifier/ProblemVariablesFromProblemAdapter.h
index fee9a404f..4bcd0fb83 100644
--- a/src/cpp/lpnamer/problem_modifier/ProblemVariablesFromProblemAdapter.h
+++ b/src/cpp/lpnamer/problem_modifier/ProblemVariablesFromProblemAdapter.h
@@ -7,7 +7,7 @@ class ProblemVariablesFromProblemAdapter
     : public IProblemVariablesProviderPort {
  public:
   ProblemVariablesFromProblemAdapter(
-      std::shared_ptr<Problem> problem, std::vector<struct ActiveLink> vector_1,
+      std::shared_ptr<Problem> problem, std::vector<ActiveLink> vector_1,
       std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger>
           shared_ptr_1);
   ProblemVariables Provide() override;
@@ -19,6 +19,6 @@ class ProblemVariablesFromProblemAdapter
       std::map<colId, ColumnsToChange>& p_indirect_cost_columns) const;
 
   std::shared_ptr<Problem> problem_;
-  const std::vector<struct ActiveLink> active_links_;
+  const std::vector<ActiveLink> active_links_;
   std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger> logger_;
 };