diff --git a/CMakeModules/CompilerSettings.cmake b/CMakeModules/CompilerSettings.cmake
index 807ce63dbe1968f8e674baf49d98e8d68c15e84d..3f532cfc943798519174c2d3a41e2922b7f904c1 100644
--- a/CMakeModules/CompilerSettings.cmake
+++ b/CMakeModules/CompilerSettings.cmake
@@ -6,7 +6,7 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 endif()
 
 if(MSVC OR MSVC90 OR MSVC10)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc /MP /W1 /D_ITERATOR_DEBUG_LEVEL=0")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc /MP /W1")
 endif(MSVC OR MSVC90 OR MSVC10)
 
 if(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")