diff --git a/cmake/modules/Warnings.cmake b/cmake/modules/Warnings.cmake
index ccac090e5..371e7bcd0 100644
--- a/cmake/modules/Warnings.cmake
+++ b/cmake/modules/Warnings.cmake
@@ -19,7 +19,7 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
         execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
                         OUTPUT_VARIABLE GCC_VERSION)
         if(GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wpedantic")
+            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
         else(GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic")
         endif(GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)