diff --git a/examples/cascade_examples/em_shower.cpp b/examples/cascade_examples/em_shower.cpp
index b17edd63c6d4218d25da141149a140778c2c75af..21bf0ac5d22059d284d1ef1800c46408c4328c45 100644
--- a/examples/cascade_examples/em_shower.cpp
+++ b/examples/cascade_examples/em_shower.cpp
@@ -181,7 +181,7 @@ int main(int argc, char** argv) {
   auto sequence = make_sequence(emCascade, emContinuous, longprof, observationLevel, cut);
   // define air shower object, run simulation
   TrackingType tracking;
-  
+
   output.startOfLibrary();
 
   output.startOfLibrary();