diff --git a/appveyor.yml b/appveyor.yml
index 828c3223..da703786 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,8 +6,8 @@ os:
 
 environment:
   matrix:
-  - additional_flags: "/Wall"
-  - additional_flags: "/permissive- /std:c++latest /utf-8 /Wall"
+  - additional_flags: ""
+  - additional_flags: "/permissive- /std:c++latest /utf-8"
 
 matrix:
   exclude:
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index e5f6dc55..6d921e99 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -82,7 +82,7 @@ if(MSVC)
 	# Disable warning C4309: 'static_cast': truncation of constant value
 	# Disable warning C4566: character represented by universal-character-name '\uFF01' cannot be represented in the current code page (1252)
 	# Disable warning C4996: 'nlohmann::basic_json<std::map,std::vector,std::string,bool,int64_t,uint64_t,double,std::allocator,nlohmann::adl_serializer>::operator <<': was declared deprecated
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4389 /wd4309 /wd4566 /wd4996")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4389 /wd4309 /wd4566 /wd4996 /Wall")
 endif()
 
 #############################################################################