diff --git a/arch/ppc/platforms/prpmc750.c b/arch/ppc/platforms/prpmc750.c
index c894e1ab59342fca5996236b6dcb52b228243bd2..24ae1caafc618a4447e91abd2f7a869c0868c5d0 100644
--- a/arch/ppc/platforms/prpmc750.c
+++ b/arch/ppc/platforms/prpmc750.c
@@ -29,6 +29,7 @@
 #include <linux/ide.h>
 #include <linux/root_dev.h>
 #include <linux/slab.h>
+#include <linux/serial_reg.h>
 
 #include <asm/byteorder.h>
 #include <asm/system.h>