diff --git a/CMakeLists.txt b/CMakeLists.txt
index ea2ba6055afcd49e9f6a89709ef7c2984b9613bd..b97052f4d570e1b108b0107df78a90b69bc9f060 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1086,15 +1086,6 @@ if ( WALBERLA_BUILD_WITH_CUDA )
 
         list( APPEND CUDA_NVCC_FLAGS "-Wno-deprecated-gpu-targets")
 
-        # FindCUDA does not respect system includes i.e. there are also warnings for boost etc reported (as of cmake 3.5.1)
-        # if all includes are added to the flags manually as sytem includes they occur double on the command line
-        # but the compiler seems to note the "isystem" not the "-I"
-        # it is also not possible to get all system include directories - so as a workaround we at least add boost here
-        # as system include
-        foreach( boostInclude ${Boost_INCLUDE_DIRS} AND NOT WALBERLA_CXX_COMPILER_IS_MSVC )
-            list( APPEND CUDA_NVCC_FLAGS "-isystem ${boostInclude}" )
-        endforeach()
-
         if ( NOT "${CUDA_NVCC_FLAGS}" MATCHES "-std=" AND NOT WALBERLA_CXX_COMPILER_IS_MSVC )
             list ( APPEND CUDA_NVCC_FLAGS "-std=c++14" )
         endif ()