diff --git a/TrackingTools/GsfTracking/src/GsfMultiStateUpdator.cc b/TrackingTools/GsfTracking/src/GsfMultiStateUpdator.cc
index 4dfa194f3b3fd..f3d6d173c105d 100644
--- a/TrackingTools/GsfTracking/src/GsfMultiStateUpdator.cc
+++ b/TrackingTools/GsfTracking/src/GsfMultiStateUpdator.cc
@@ -31,15 +31,12 @@ TrajectoryStateOnSurface GsfMultiStateUpdator::update(const TrajectoryStateOnSur
   for (auto const& tsosI : predictedComponents) {
     TrajectoryStateOnSurface updatedTSOS = KFUpdator().update(tsosI, aRecHit);
 
-    double det = 0;
-    double det22 = 0;
-    double det33 = 0;
-    double det44 = 0;
-    if (updatedTSOS.isValid() && updatedTSOS.localError().valid() && updatedTSOS.localError().posDef() &&
-        (updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix22>(0, 0).Det(det22) && det22 > 0) &&
-        (updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix33>(0, 0).Det(det33) && det33 > 0) &&
-        (updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix44>(0, 0).Det(det44) && det44 > 0) &&
-        (updatedTSOS.curvilinearError().matrix().Det2(det)) && det > 0) {
+    if (double det;
+        updatedTSOS.isValid() && updatedTSOS.localError().valid() && updatedTSOS.localError().posDef() &&
+        (det = 0., updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix22>(0, 0).Det(det) && det > 0) &&
+        (det = 0., updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix33>(0, 0).Det(det) && det > 0) &&
+        (det = 0., updatedTSOS.curvilinearError().matrix().Sub<AlgebraicSymMatrix44>(0, 0).Det(det) && det > 0) &&
+        (det = 0., updatedTSOS.curvilinearError().matrix().Det2(det) && det > 0)) {
       result.addState(TrajectoryStateOnSurface(weights[i],
                                                updatedTSOS.localParameters(),
                                                updatedTSOS.localError(),