diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index f7b1227d64548ab68f557f78a1ba1fa5afe89bf1..d3e0906ff2bc055bf1df7b566ff293e2faf778c6 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -131,6 +131,7 @@ extern void enable_kernel_altivec(void);
 extern void giveup_altivec(struct task_struct *);
 extern void load_up_altivec(struct task_struct *);
 extern int emulate_altivec(struct pt_regs *);
+extern void enable_kernel_spe(void);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
 extern int fix_alignment(struct pt_regs *);