diff --git a/test/fmt_test.go b/test/fmt_test.go
index b2f44429c4..27c986b43e 100644
--- a/test/fmt_test.go
+++ b/test/fmt_test.go
@@ -52,7 +52,7 @@ func main() {
 	E(f.s("\tf   ").f64(1234.5678e-8), "\tf   0.000012");
 	E(f.s("\tf   ").f64(-7.0), "\tf   -7.000000");
 	E(f.s("\tf   ").f64(-1e-9), "\tf   -0.000000");
-	E(f.s("\tg   ").g64(1234.5678e3), "\tg   1234567.8");
+	E(f.s("\tg   ").g64(1234.5678e3), "\tg   1.2345678e+06");
 	E(f.s("\tg   ").g64(1234.5678e-8), "\tg   1.2345678e-05");
 	E(f.s("\tg   ").g64(-7.0), "\tg   -7");
 	E(f.s("\tg   ").g64(-1e-9), "\tg   -1e-09");