diff --git a/packages/shylu/shylu_dd/frosch/src/InterfaceSets/FROSch_InterfaceEntity_def.hpp b/packages/shylu/shylu_dd/frosch/src/InterfaceSets/FROSch_InterfaceEntity_def.hpp
index 1b842a939a75..8ec3e3b1f346 100644
--- a/packages/shylu/shylu_dd/frosch/src/InterfaceSets/FROSch_InterfaceEntity_def.hpp
+++ b/packages/shylu/shylu_dd/frosch/src/InterfaceSets/FROSch_InterfaceEntity_def.hpp
@@ -117,7 +117,7 @@ namespace FROSch {
         FROSCH_ASSERT(nDofs<=DofsPerNode_,"nDofs>DofsPerNode_.");
 
         for (unsigned i=0; i<nDofs; i++) {
-            if ((0<=dofIDs[i])&&(dofIDs[i]<=DofsPerNode_)) {
+            if (dofIDs[i]<=DofsPerNode_) {
                 NodeVector_[iD].DofsGlobal_[dofIDs[i]] = dofsGlobal[dofIDs[i]];
             } else {
                 FROSCH_ASSERT(false,"dofIDs[i] is out of range.");