diff --git a/AMDiS/src/parallel/ParallelDofMapping.h b/AMDiS/src/parallel/ParallelDofMapping.h
index 33fc94b7afdfcd7073247175a5d2e79e3183a1d3..189d8c19ca9bb239add665f133f8ca75c89ca40d 100644
--- a/AMDiS/src/parallel/ParallelDofMapping.h
+++ b/AMDiS/src/parallel/ParallelDofMapping.h
@@ -489,7 +489,7 @@ namespace AMDiS {
 
     ComponentDofMap& operator[](const FiniteElemSpace *feSpace)
     {
-      ERROR_EXIT("BLUB\n");
+      ERROR_EXIT("FE Space acces is not possible for component wise defined DOF mappings\n");
     }
     
     ComponentIterator& getIteratorData()
diff --git a/AMDiS/src/parallel/PetscSolverFeti.cc b/AMDiS/src/parallel/PetscSolverFeti.cc
index ce3ffabce74d300fa14a21de6b8b11fc747a17e8..ee43d7d25c55b8376911d78e44066c5d6f7b7b71 100644
--- a/AMDiS/src/parallel/PetscSolverFeti.cc
+++ b/AMDiS/src/parallel/PetscSolverFeti.cc
@@ -582,7 +582,7 @@ namespace AMDiS {
 	localDofMap[component].insertRankDof(i, nLocalInterior);
 	
 	if (fetiPreconditioner == FETI_DIRICHLET)
-	  interiorDofMap[feSpace].insertRankDof(i, nLocalInterior);
+	  interiorDofMap[component].insertRankDof(i, nLocalInterior);
 	
 	nLocalInterior++;	
       } else {