diff --git a/Detector/DetCRD/CMakeLists.txt b/Detector/DetCRD/CMakeLists.txt
index 4a1558a9527aefda9ec5b0ce23cc9a95796fc516..d3f0b06954b5d3a547cb13495dfb52201ebf0818 100644
--- a/Detector/DetCRD/CMakeLists.txt
+++ b/Detector/DetCRD/CMakeLists.txt
@@ -17,8 +17,8 @@ find_package(ROOT COMPONENTS MathCore GenVector Geom REQUIRED)
 
 gaudi_add_module(DetCRD
                  SOURCES src/Calorimeter/CRDEcal_v01.cpp
-		         src/Calorimeter/RotatedPolyhedraBarrelCalorimeter_v01_geo.cpp
-			 src/Calorimeter/RotatedCrystalCalorimeter_v01_geo.cpp
+                         src/Calorimeter/RotatedPolyhedraBarrelCalorimeter_v01_geo.cpp
+                         src/Calorimeter/RotatedCrystalCalorimeter_v01_geo.cpp
                          src/Other/CRDBeamPipe_v01_geo.cpp
                          src/Tracker/SiTrackerSkewRing_v01_geo.cpp