diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5869e2840..af45bd9b6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,7 @@ if(NOT MSVC)
 		# mingw32 likes to complain about using the "wrong" format strings despite them actually working
 		set(WARNING_FLAGS "${WARNING_FLAGS} -Wno-format")
 	endif()
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WARNING_FLAGS} -Werror=implicit-function-declaration -Werror=implicit-int")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WARNING_FLAGS} -Werror=implicit-function-declaration -Werror=implicit-int -fwrapv")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WARNING_FLAGS} -Woverloaded-virtual")
 else()
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_CRT_SECURE_NO_WARNINGS /wd4003 /wd4244 /wd4146 /wd4267 /Zc:preprocessor-")