diff --git a/CMakeLists.txt b/CMakeLists.txt
index 868220451..adefaa2ef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1078,7 +1078,8 @@ ELSEIF(MSVC)
         #C4100 'identifier' : unreferenced formal parameter
         #C4127 Error Message conditional expression is constant
         #C4706 assignment within conditional expression
-        SET(OSG_AGGRESSIVE_WARNING_FLAGS /W4 /wd4706 /wd4127 /wd4100)
+        #C4589: Constructor of abstract class 'osgGA::CameraManipulator' ignores initializer for virtual base class 'osg::Object'
+        SET(OSG_AGGRESSIVE_WARNING_FLAGS /W4 /wd4589 /wd4706 /wd4127 /wd4100)
 ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
         SET(OSG_AGGRESSIVE_WARNING_FLAGS  -Wall -Wparentheses -Wno-long-long -Wno-import -pedantic -Wreturn-type -Wmissing-braces -Wunknown-pragmas -Wunused -Wno-overloaded-virtual)