diff --git a/kratos/solving_strategies/builder_and_solvers/residualbased_block_builder_and_solver.h b/kratos/solving_strategies/builder_and_solvers/residualbased_block_builder_and_solver.h
index e3711dcd300c..5e626d1c8db4 100644
--- a/kratos/solving_strategies/builder_and_solvers/residualbased_block_builder_and_solver.h
+++ b/kratos/solving_strategies/builder_and_solvers/residualbased_block_builder_and_solver.h
@@ -714,8 +714,12 @@ class ResidualBasedBlockBuilderAndSolver
     {
         KRATOS_TRY;
 
+        // Call the external utility
         BlockBuildDofArrayUtility::SetUpDofArray(rModelPart, BaseType::mDofSet, this->GetEchoLevel(), BaseType::GetCalculateReactionsFlag());
 
+        // Set the flag as añready initialized
+        BaseType::mDofSetIsInitialized = true;
+
         KRATOS_CATCH("");
     }