diff --git a/CMakeLists.txt b/CMakeLists.txt
index 267778e20..fb8998570 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -369,6 +369,9 @@ if(CMAKE_COMPILER_IS_GNUCXX)
     if (X86 OR X86_64)
         set(SIMD_COMPILER_FLAGS "-msse2 -mfpmath=sse -ftree-vectorize -ftree-slp-vectorize")
     endif()
+
+    set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O3 -g -DNDEBUG")
+    set(CMAKE_C_FLAGS_RELWITHDEBINFO  "-O3 -g -DNDEBUG")
 endif(CMAKE_COMPILER_IS_GNUCXX)
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" )