--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -208,7 +208,6 @@ if (sol2-is-top-level-project)
 	check_compiler_flag(warn-pedantic GCC -Wpedantic)
 	check_compiler_flag(warn-all MSVC /W4 GCC -Wall)
 	check_compiler_flag(warn-extra GCC -Wextra)
-	check_compiler_flag(warn-errors MSVC /WX GCC -Werror)
 	# Individual warnings/errors
 	check_compiler_diagnostic(unknown-warning)
 	check_compiler_diagnostic(unknown-warning-option)
--- a/examples/customization/CMakeLists.txt
+++ b/examples/customization/CMakeLists.txt
@@ -45,7 +45,7 @@ function (MAKE_CUSTOMIZATION_EXAMPLE example_suffix target_sol)
 			PRIVATE -std=c++1z 
 			-ftemplate-backtrace-limit=0
 			-Wno-unknown-warning -Wno-unknown-warning-option
-			-Wall -Wpedantic -Werror -pedantic -pedantic-errors
+			-Wall -Wpedantic -pedantic -pedantic-errors
 			-Wno-noexcept-type)
 	endif()