diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index 98d01bc4fa92f1267062645e31c9b632f74e2339..7827394a5b6cd0443fb2b0201244a0e790506920 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -68,8 +68,6 @@ struct thread_struct {
 	.request		= { 0 } \
 }
 
-extern struct task_struct *alloc_task_struct_node(int node);
-
 static inline void release_thread(struct task_struct *task)
 {
 }