diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1300c23..3bedfe7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,7 +60,7 @@
 
 set (CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -Wall")
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
 
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
 set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti")