diff --git a/pkgs/racket-test-core/tests/racket/extflonum.rktl b/pkgs/racket-test-core/tests/racket/extflonum.rktl
index e1f9b635b5..e95922504b 100644
--- a/pkgs/racket-test-core/tests/racket/extflonum.rktl
+++ b/pkgs/racket-test-core/tests/racket/extflonum.rktl
@@ -10,8 +10,8 @@
 (test "+inf.t" format "~a" +inf.t)
 (test "-inf.t" format "~a" -inf.t)
 (test "+nan.t" format "~a" +nan.t)
-(test "7.0t0" format "~a" 007.000t000)
-(test "-7.0t0" format "~a" -007.000t000)
+(test #t regexp-match? #rx"7[.]0*t0" (format "~a" 007.000t000))
+(test #t regexp-match? #rx"-0*7[.]0*t0" (format "~a" -007.000t000))
 (test #t extflonum? 7.t0)
 (test #f extflonum? 7.0)
 (test #f number? 7.t0)