diff --git a/sys/amd64/amd64/autoconf.c b/sys/amd64/amd64/autoconf.c
index 7273bfdfe717..d8d7b4ff70e8 100644
--- a/sys/amd64/amd64/autoconf.c
+++ b/sys/amd64/amd64/autoconf.c
@@ -94,7 +94,6 @@ device_t isa_bus_device = 0;
 static void	configure_first(void *);
 static void	configure(void *);
 static void	configure_final(void *);
-extern void	bootpc_init(void);
 
 #if defined(NFSCLIENT) && defined(NFS_ROOT) && !defined(BOOTP_NFSROOT)
 static void	pxe_setup_nfsdiskless(void);
diff --git a/sys/i386/i386/autoconf.c b/sys/i386/i386/autoconf.c
index 7273bfdfe717..d8d7b4ff70e8 100644
--- a/sys/i386/i386/autoconf.c
+++ b/sys/i386/i386/autoconf.c
@@ -94,7 +94,6 @@ device_t isa_bus_device = 0;
 static void	configure_first(void *);
 static void	configure(void *);
 static void	configure_final(void *);
-extern void	bootpc_init(void);
 
 #if defined(NFSCLIENT) && defined(NFS_ROOT) && !defined(BOOTP_NFSROOT)
 static void	pxe_setup_nfsdiskless(void);
diff --git a/sys/ia64/ia64/autoconf.c b/sys/ia64/ia64/autoconf.c
index ccca24782079..c112d99a0dab 100644
--- a/sys/ia64/ia64/autoconf.c
+++ b/sys/ia64/ia64/autoconf.c
@@ -55,7 +55,6 @@
 #include <cam/cam_debug.h>
 
 static void	configure(void *);
-extern void	bootpc_init(void);
 SYSINIT(configure, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL)
 
 #ifdef DEV_ISA