diff --git a/include/asm-ppc64/compat.h b/include/asm-ppc64/compat.h
index 09c28d2..12414f5 100644
--- a/include/asm-ppc64/compat.h
+++ b/include/asm-ppc64/compat.h
@@ -26,6 +26,7 @@
 typedef u32		compat_caddr_t;
 typedef __kernel_fsid_t	compat_fsid_t;
 typedef s32		compat_key_t;
+typedef s32		compat_timer_t;
 
 typedef s32		compat_int_t;
 typedef s32		compat_long_t;
diff --git a/include/asm-ppc64/ppc32.h b/include/asm-ppc64/ppc32.h
index 1d04048..6b44a8c 100644
--- a/include/asm-ppc64/ppc32.h
+++ b/include/asm-ppc64/ppc32.h
@@ -32,7 +32,7 @@
 
 		/* POSIX.1b timers */
 		struct {
-			timer_t _tid;			/* timer id */
+			compat_timer_t _tid;			/* timer id */
 			int _overrun;			/* overrun count */
 			compat_sigval_t _sigval;		/* same as below */
 			int _sys_private;		/* not to be passed to user */