diff --git a/CMakeLists.txt b/CMakeLists.txt
index 688356a..79359a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,7 @@ endif()
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -ffast-math")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=return-type")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=switch-enum")
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Og")