diff --git a/src/runtime/gc.go b/src/runtime/gc.go
index f28b3380..ee623c07 100644
--- a/src/runtime/gc.go
+++ b/src/runtime/gc.go
@@ -36,3 +36,7 @@ func GC() {
 func KeepAlive(x interface{}) {
 	// Unimplemented. Only required with SetFinalizer().
 }
+
+func SetFinalizer(obj interface{}, finalizer interface{}) {
+	// Unimplemented.
+}
diff --git a/src/runtime/runtime_unix.go b/src/runtime/runtime_unix.go
index d21e80cd..2c072022 100644
--- a/src/runtime/runtime_unix.go
+++ b/src/runtime/runtime_unix.go
@@ -64,3 +64,7 @@ func GC() {
 func KeepAlive(x interface{}) {
 	// Unimplemented. Only required with SetFinalizer().
 }
+
+func SetFinalizer(obj interface{}, finalizer interface{}) {
+	// Unimplemented.
+}