diff --git a/testing/masks/boost/files.cmake b/testing/masks/boost/files.cmake
index 004661b..d0fe3a1 100644
--- a/testing/masks/boost/files.cmake
+++ b/testing/masks/boost/files.cmake
@@ -1,13 +1,13 @@
 SET(CPP_FILES 
-	../../core/DummyStructure.cpp
-	../../core/CreateTestStructure.cpp		
+	../../core/DummyStructure.cpp		
 	../../core/DummyDoseAccessor.cpp
+	../../core/CreateTestStructure.cpp
 	BoostMaskTest.cpp  
 	rttbBoostMaskTests.cpp
 )
 
 SET(H_FILES
 	../../core/DummyStructure.h
 	../../core/CreateTestStructure.h		
 	../../core/DummyDoseAccessor.h	 
 )