diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 86aee3f2483f4013e9db478da3fc4db50b8af851..13e8a8a9841c357c152a5a6882ee80adba5d0043 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -79,8 +79,6 @@ int pmac_newworld;
 
 static int current_root_goodness = -1;
 
-extern struct machdep_calls pmac_md;
-
 #define DEFAULT_ROOT_DEVICE Root_SDA1	/* sda1 - slightly silly choice */
 
 #ifdef CONFIG_PPC64