diff --git a/conf/gen_parser.m4 b/conf/gen_parser.m4
index 70f2c2e8..74385f32 100644
--- a/conf/gen_parser.m4
+++ b/conf/gen_parser.m4
@@ -19,6 +19,7 @@ m4_define(DNL, `m4_dnl')
 # Define macros for defining sections
 m4_define(CF_ZONE, `m4_divert($1)/* $2 from m4___file__ */')
 m4_define(CF_HDR, `CF_ZONE(1, Headers)')
+m4_define(CF_DEFINES, `CF_ZONE(1, Defines)')
 m4_define(CF_DECLS, `CF_ZONE(2, Declarations)')
 m4_define(CF_GRAMMAR, `CF_ZONE(3, Grammar)')
 m4_define(CF_CODE, `CF_ZONE(4, C Code)')
diff --git a/filter/config.Y b/filter/config.Y
index 50a5685a..38ee16a6 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -16,6 +16,8 @@
 
 CF_HDR
 
+CF_DEFINES
+
 #define P(a,b) ((a<<8) | b)
 
 CF_DECLS
diff --git a/nest/config.Y b/nest/config.Y
index 24223dba..a9090288 100644
--- a/nest/config.Y
+++ b/nest/config.Y
@@ -8,13 +8,15 @@
 
 CF_HDR
 
-static struct proto_config *this_proto;
-static struct iface_patt *this_ipatt;
-
 #include "nest/rt-dev.h"
 #include "nest/password.h"
 #include "nest/cmds.h"
 
+CF_DEFINES
+
+static struct proto_config *this_proto;
+static struct iface_patt *this_ipatt;
+
 CF_DECLS
 
 CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
diff --git a/proto/rip/config.Y b/proto/rip/config.Y
index ebd57266..a8e65e34 100644
--- a/proto/rip/config.Y
+++ b/proto/rip/config.Y
@@ -17,6 +17,8 @@ CF_HDR
 #include "proto/rip/rip.h"
 #include "nest/iface.h"
 
+CF_DEFINES
+
 #define RIP_CFG ((struct rip_proto_config *) this_proto)
 #define RIP_IPATT ((struct rip_patt *) this_ipatt)
 
diff --git a/proto/static/config.Y b/proto/static/config.Y
index 1e2d7a86..12d7934f 100644
--- a/proto/static/config.Y
+++ b/proto/static/config.Y
@@ -10,6 +10,8 @@ CF_HDR
 
 #include "proto/static/static.h"
 
+CF_DEFINES
+
 static struct static_route *this_srt;
 
 CF_DECLS
diff --git a/sysdep/unix/krt.Y b/sysdep/unix/krt.Y
index 01264d55..b5ca3c0b 100644
--- a/sysdep/unix/krt.Y
+++ b/sysdep/unix/krt.Y
@@ -10,6 +10,8 @@ CF_HDR
 
 #include "lib/krt.h"
 
+CF_DEFINES
+
 #define THIS_KRT ((struct krt_config *) this_proto)
 #define THIS_KIF ((struct kif_config *) this_proto)