diff --git a/gpu.cmake b/gpu.cmake
index 06b8672e82e4810d375e2af294d1da758850923b..e31d81de64dde6c206372e0f5cda99cf450f848f 100644
--- a/gpu.cmake
+++ b/gpu.cmake
@@ -1,5 +1,4 @@
 
-
 if(BUILD_NUMERIC_TESTS)
     set(CMAKE_CXX_STANDARD 17)
 endif()
@@ -44,7 +43,7 @@ IF (BUILD_VF_GPU)
     #add_subdirectory(apps/gpu/LBM/gridGeneratorTest)
     #add_subdirectory(apps/gpu/LBM/TGV_3D)
     #add_subdirectory(apps/gpu/LBM/TGV_3D_MultiGPU)
-    add_subdirectory(apps/gpu/LBM/ActuatorLine)
+    #add_subdirectory(apps/gpu/LBM/ActuatorLine)
 ELSE()
     MESSAGE( STATUS "exclude Virtual Fluids GPU." )
 ENDIF()
@@ -138,4 +137,4 @@ endif()
 if(BUILD_VF_TRAFFIC)
     add_subdirectory(src/gpu/Traffic)
     add_subdirectory(apps/gpu/LBM/TrafficTest)
-endif()
\ No newline at end of file
+endif()