diff --git a/cmd/stringer/stringer.go b/cmd/stringer/stringer.go
index f3e60a9e47..a51cf73b49 100644
--- a/cmd/stringer/stringer.go
+++ b/cmd/stringer/stringer.go
@@ -454,10 +454,9 @@ func usize(n int) int {
 		return 8
 	case n < 1<<16:
 		return 16
-	case n < 1<<32:
-		return 32
 	default:
-		return 64
+		// 2^32 is enough constants for anyone.
+		return 32
 	}
 }