diff --git a/src/runtime/stubs32.go b/src/runtime/stubs32.go
index a7f52f6b9e..c4715fe989 100644
--- a/src/runtime/stubs32.go
+++ b/src/runtime/stubs32.go
@@ -11,4 +11,4 @@ import "unsafe"
 // Declarations for runtime services implemented in C or assembly that
 // are only present on 32 bit systems.
 
-func call16(fn, arg unsafe.Pointer, n, retoffset uint32)
+func call16(typ, fn, arg unsafe.Pointer, n, retoffset uint32)