diff --git a/CMakeLists.txt b/CMakeLists.txt
index bd5c86140..771800205 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -203,6 +203,11 @@ IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
 ELSEIF(MSVC)
   # enable multi-core compilation with MSVC
   add_compile_options(/MP)
+
+  # disable "elements of array '' will be default initialized" warning on MSVC2013
+  IF(MSVC12)
+    add_compile_options(/wd4351)
+  ENDIF()
 ELSEIF ( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fvisibility=hidden -fPIC -Wall -Wno-long-long -std=c++11" )
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
@@ -219,8 +224,12 @@ if (ASSIMP_COVERALLS)
 endif()
 
 if (ASSIMP_WERROR)
+  IF (MSVC)
+    add_compile_options(/WX)
+  ELSE()
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
+  ENDIF()
 endif()
 
 INCLUDE (FindPkgMacros)
diff --git a/appveyor.yml b/appveyor.yml
index 991cf5bc1..b8828710b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -29,8 +29,8 @@ install:
 
 build_script:
 - cd c:\projects\assimp
-- if "%platform%" equ "x64" (cmake CMakeLists.txt -G "Visual Studio %Configuration% Win64")
-- if "%platform%" equ "x86" (cmake CMakeLists.txt -G "Visual Studio %Configuration%")
+- if "%platform%" equ "x64" (cmake CMakeLists.txt -DASSIMP_WERROR=ON -G "Visual Studio %Configuration% Win64")
+- if "%platform%" equ "x86" (cmake CMakeLists.txt -DASSIMP_WERROR=ON -G "Visual Studio %Configuration%")
 - if "%platform%" equ "x64" (msbuild /m /p:Configuration=Release /p:Platform="x64" Assimp.sln)
 - if "%platform%" equ "x86" (msbuild /m /p:Configuration=Release /p:Platform="Win32" Assimp.sln)