diff --git a/configure b/configure
index 6d3cd84f0..d76180a37 100755
--- a/configure
+++ b/configure
@@ -113,7 +113,7 @@ do
          RUNWITH="lua$LUA_SUFFIX"
          LUA_INCDIR="/usr/include/lua$LUA_SUFFIX"
          LUA_INCDIR_SET=yes
-         CFLAGS="$CFLAGS -D_GNU_SOURCE"
+         CFLAGS="$CFLAGS -ggdb -D_GNU_SOURCE"
       fi
       if [ "$OSTYPE" = "macosx" ]; then
          LUA_INCDIR=/usr/local/include;
diff --git a/util-src/Makefile b/util-src/Makefile
index 3a4f1ac8f..f18d5a80a 100644
--- a/util-src/Makefile
+++ b/util-src/Makefile
@@ -1,7 +1,7 @@
 
 include ../config.unix
 
-CFLAGS+=-ggdb -I$(LUA_INCDIR)
+CFLAGS+=-I$(LUA_INCDIR)
 
 INSTALL_DATA=install -m644
 TARGET?=../util/