diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go
index b903cc80111..c47b43200ff 100644
--- a/src/runtime/runtime2.go
+++ b/src/runtime/runtime2.go
@@ -209,6 +209,7 @@ type eface struct {
 	data  unsafe.Pointer
 }
 
+//go:nosplit
 func efaceOf(ep *any) *eface {
 	return (*eface)(unsafe.Pointer(ep))
 }