diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 716158a..2c312a2 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -110,6 +110,9 @@
                                struct sigstack __user *ossptr,
                                unsigned long sp);
 
+/* ptrace_32.c */
+asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p);
+
 /* windows.c */
 void try_to_clear_window_buffer(struct pt_regs *regs, int who);