diff --git a/openair-cn/configure.ac b/openair-cn/configure.ac
index 837d207c72..d479d6f066 100644
--- a/openair-cn/configure.ac
+++ b/openair-cn/configure.ac
@@ -286,7 +286,7 @@ AC_CHECK_PROG(HAVE_GCCXML,gccxml,yes,no)
 AM_CONDITIONAL(HAVE_GCCXML, test x$HAVE_GCCXML = xyes)
 
 dnl Add these flags
-CFLAGS="$CFLAGS -Wall"
+CFLAGS="$CFLAGS -Wall -g -O"
 CFLAGS="$CFLAGS -Wcast-align"
 CFLAGS="$CFLAGS -Wchar-subscripts"
 CFLAGS="$CFLAGS -Wmissing-prototypes"