diff --git a/arch/x86/um/asm/syscall.h b/arch/x86/um/asm/syscall.h
index 9fe77b7b5a0ed5b77f05174e8ea87f39cb80e2ed..81d6562ce01d5ce52294691e03555c1b4cf3e10f 100644
--- a/arch/x86/um/asm/syscall.h
+++ b/arch/x86/um/asm/syscall.h
@@ -3,6 +3,10 @@
 
 #include <uapi/linux/audit.h>
 
+typedef asmlinkage long (*sys_call_ptr_t)(unsigned long, unsigned long,
+					  unsigned long, unsigned long,
+					  unsigned long, unsigned long);
+
 static inline int syscall_get_arch(void)
 {
 #ifdef CONFIG_X86_32