diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,16 +17,6 @@
 FIND_PACKAGE(CPLEX)
 FIND_PACKAGE(COIN)
 
-IF(MSVC)
-  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4250 /wd4355 /wd4503 /wd4800 /wd4996")
-# Suppressed warnings:
-# C4250: 'class1' : inherits 'class2::member' via dominance
-# C4355: 'this' : used in base member initializer list
-# C4503: 'function' : decorated name length exceeded, name was truncated
-# C4800: 'type' : forcing value to bool 'true' or 'false' (performance warning)
-# C4996: 'function': was declared deprecated
-ENDIF(MSVC)
-
 INCLUDE(CheckTypeSize)
 CHECK_TYPE_SIZE("long long" LEMON_LONG_LONG)