diff --git a/CMakeLists.txt b/CMakeLists.txt
index 24b4c4adcc56a06306847d6ef8e91a9db5417f17..2ffd2dcd506750bf04d5eadd51b602ee3d5ddf66 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,11 +61,6 @@ PKG_CONFIG_APPEND_LIBS("dynamic-graph")
 SEARCH_FOR_BOOST()
 SEARCH_FOR_PTHREAD()
 
-# Remove additional warnings.
-IF(WIN32)
-  ADD_DEFINITIONS("/wd4251 /wd4275 /wd4101 /wd4355")
-ENDIF(WIN32)
-
 ADD_SUBDIRECTORY(src)
 ADD_SUBDIRECTORY(include)
 ADD_SUBDIRECTORY(tools)