diff --git a/Solver/CMakeLists.txt b/Solver/CMakeLists.txt
index 83714dfa9e466ad9ff5c1c7f23aebe4830ab007f..e88ccd212ef704586aa5b5495ecce99a85fb8921 100644
--- a/Solver/CMakeLists.txt
+++ b/Solver/CMakeLists.txt
@@ -13,7 +13,6 @@ set(SRC
   multiscaleLaplace.cpp
   dgGroupOfElements.cpp
   dgAlgorithm.cpp
-  dgMgAlgorithm.cpp
   dgRungeKutta.cpp
   dgRungeKuttaMultirate.cpp
   dgConservationLaw.cpp