diff --git a/src/rx/rx_clock.h b/src/rx/rx_clock.h
index e37510655a..38bb1306f5 100644
--- a/src/rx/rx_clock.h
+++ b/src/rx/rx_clock.h
@@ -42,8 +42,8 @@ struct clock {
     afs_int32 usec;		/* Microseconds since clock_Init */
 };
 
-#ifndef	KERNEL
-#if defined(AFS_USE_GETTIMEOFDAY) || defined(AFS_PTHREAD_ENV)
+#if !defined(KERNEL) || defined(UKERNEL)
+#if defined(AFS_USE_GETTIMEOFDAY) || defined(AFS_PTHREAD_ENV) || defined(UKERNEL)
 #define clock_Init()
 #define clock_NewTime()
 #define clock_UpdateTime()
diff --git a/src/rx/rx_packet.h b/src/rx/rx_packet.h
index ab324d5a19..7028825b79 100644
--- a/src/rx/rx_packet.h
+++ b/src/rx/rx_packet.h
@@ -12,11 +12,9 @@
 #if defined(AFS_NT40_ENV) 
 #include "rx_xmit_nt.h"
 #endif
-#ifndef UKERNEL
 #ifndef AFS_NT40_ENV
 #include <sys/uio.h>
 #endif /* !AFS_NT40_ENV */
-#endif /* !UKERNEL */
 /* this file includes the macros and decls which depend on packet
  * format, and related packet manipulation macros.  Note that code
  * which runs at NETPRI should not sleep, or AIX will panic */