diff --git a/src/OpenFOAM/Make/files b/src/OpenFOAM/Make/files
index 197d9880f0b338383ece049daf0c2e7ffaab7714..c4f142b88cd4413cbc3fd4bfb7c24d94aed93b74 100644
--- a/src/OpenFOAM/Make/files
+++ b/src/OpenFOAM/Make/files
@@ -255,6 +255,7 @@ $(lduMatrix)/solvers/ICCG/ICCG.C
 $(lduMatrix)/solvers/BICCG/BICCG.C
 
 $(lduMatrix)/smoothers/GaussSeidel/GaussSeidelSmoother.C
+$(lduMatrix)/smoothers/symGaussSeidel/symGaussSeidelSmoother.C
 $(lduMatrix)/smoothers/nonBlockingGaussSeidel/nonBlockingGaussSeidelSmoother.C
 $(lduMatrix)/smoothers/DIC/DICSmoother.C
 $(lduMatrix)/smoothers/FDIC/FDICSmoother.C