diff --git a/CMakeLists.txt b/CMakeLists.txt
index c6aedff70e..94031f4a7a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -189,9 +189,11 @@ message(STATUS "******************************************")
 message(STATUS "***            Compiler Flags          ***")
 message(STATUS "******************************************")
 
-message(STATUS "Adding: -Wno-cpp")
-set(DUNE_CXX_FLAGS "${DUNE_CXX_FLAGS} -Wno-cpp")
-set(DUNE_C_FLAGS "${DUNE_C_FLAGS} -Wno-cpp")
+if(NOT DUNE_OS_WINDOWS)
+  message(STATUS "Adding: -Wno-cpp")
+  set(DUNE_CXX_FLAGS "${DUNE_CXX_FLAGS} -Wno-cpp")
+  set(DUNE_C_FLAGS "${DUNE_C_FLAGS} -Wno-cpp")
+endif(NOT DUNE_OS_WINDOWS)
 
 message(STATUS "DUNE_CXX_FLAGS: ${DUNE_CXX_FLAGS}")
 message(STATUS "DUNE_C_FLAGS: ${DUNE_C_FLAGS}")