diff --git a/code/ryzom/CMakeModules/nel.cmake b/code/ryzom/CMakeModules/nel.cmake
index 96f935964..2be1c0498 100644
--- a/code/ryzom/CMakeModules/nel.cmake
+++ b/code/ryzom/CMakeModules/nel.cmake
@@ -81,7 +81,7 @@ MACRO(NL_SETUP_BUILD)
       SET(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -lrt")
     ENDIF(NOT APPLE)
     SET(NL_DEBUG_CFLAGS "-DNL_DEBUG -g")
-    SET(NL_RELEASE_CFLAGS "-DNL_RELEASE -O6")
+    SET(NL_RELEASE_CFLAGS "-DNL_RELEASE -O6 -g")
     SET(NL_RELEASEDEBUG_CFLAGS "-DNL_RELEASE_DEBUG -g -finline-functions -O3 ")
     SET(NL_NONE_CFLAGS "-DNL_RELEASE -g -finline-functions -O2 ")
     IF(WITH_COCOA)