diff --git a/CMakeLists.txt b/CMakeLists.txt
index a741007..b500869 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -151,7 +151,7 @@ if(CMAKE_BUILD_TYPE STREQUAL Debug)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
   endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra")
 
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconversion -Wshadow -Wcast-qual")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconversion -Wshadow -Wcast-qual -Wvla")
 
   if(NOT CMAKE_CXX_FLAGS MATCHES "-Wpedantic")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wpedantic")