diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c42e3eb2e..96f67ebd0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -21,11 +21,11 @@ COMPILE_DEFINITIONS ERESSEA_BUILDNO="${ERESSEA_BUILDNO}")
 ENDIF()
 
 IF (CMAKE_COMPILER_IS_GNUCC)
-#    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-error=unused-but-set-variable")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wvla")
 ENDIF()
 IF (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
 #    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wconversion -Wno-sign-conversion")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wsign-compare -Wall -Werror -Wno-unknown-pragmas -Wstrict-prototypes -Wpointer-arith -Wno-char-subscripts -Wno-long-long")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wsign-compare -Wall -Werror -Wno-unknown-pragmas -Wstrict-prototypes -Wpointer-arith -Wno-char-subscripts -Wno-long-long")
 #    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c89")
 ELSEIF(MSVC)
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4 /WX /MP /D_CRT_SECURE_NO_WARNINGS /D_USE_MATH_DEFINES")