diff --git a/core/detectors/trd/CbmTrdRadiator.cxx b/core/detectors/trd/CbmTrdRadiator.cxx
index b05fbb338ce08193ff32933be35db17ff0684bfa..d69291295adfd52cac9a636eaeb20a60b0c79a8f 100644
--- a/core/detectors/trd/CbmTrdRadiator.cxx
+++ b/core/detectors/trd/CbmTrdRadiator.cxx
@@ -13,7 +13,7 @@
 
 #include <Logger.h>  // for Logger, LOG
 
-#include <TDirectory.h>   // for TDirectory
+#include <TDirectory.h>  // for TDirectory
 #include <TFile.h>        // for TFile, gFile
 #include <TGeoManager.h>  // for TGeoManager, gGeoManager
 #include <TH1.h>          // for TH1D