diff --git a/random.c b/random.c
index 83fb16bd94..921ec7c52d 100644
--- a/random.c
+++ b/random.c
@@ -529,7 +529,7 @@ Init_RandomSeed(void)
     seed_initialized = 1;
 }
 
-static VALUE
+static void
 Init_RandomSeed2(void)
 {
     saved_seed = make_seed_value(initial_seed);