diff --git a/hurricane/CMakeLists.txt b/hurricane/CMakeLists.txt
index b6c770b6..a1886ce8 100644
--- a/hurricane/CMakeLists.txt
+++ b/hurricane/CMakeLists.txt
@@ -6,6 +6,11 @@ IF(COMMAND CMAKE_POLICY)
   CMAKE_POLICY(SET CMP0003 NEW)
 ENDIF(COMMAND CMAKE_POLICY)
 
+SET(CMAKE_C_FLAGS_DEBUG     "-g -Wall" CACHE STRING "Debug options." FORCE)
+SET(CMAKE_CXX_FLAGS_DEBUG   "-g -Wall" CACHE STRING "Debug options." FORCE)
+SET(CMAKE_C_FLAGS_RELEASE   "-O3 -DNDEBUG -Wall" CACHE STRING "Release options." FORCE)
+SET(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -Wall" CACHE STRING "Release options." FORCE)
+
 LIST(INSERT CMAKE_MODULE_PATH 0 "${HURRICANE_SOURCE_DIR}/cmake_modules/")
 
 OPTION(BUILD_DOC "Build the documentation (doxygen)" OFF)