diff --git a/pkgs/math-pkgs/math-test/math/tests/matrix-tests.rkt b/pkgs/math-pkgs/math-test/math/tests/matrix-tests.rkt
index 1a385dfbdf..5ec65dbbbe 100644
--- a/pkgs/math-pkgs/math-test/math/tests/matrix-tests.rkt
+++ b/pkgs/math-pkgs/math-test/math/tests/matrix-tests.rkt
@@ -698,8 +698,8 @@
 ;; ===================================================================================================
 ;; Error
 
-(for*: ([x  (in-list '(-inf.0 -10.0 -1.0 -0.1 -0.0 0.0 0.1 1.0 10.0 +inf.0 +nan.0))]
-        [y  (in-list '(-inf.0 -10.0 -1.0 -0.1 -0.0 0.0 0.1 1.0 10.0 +inf.0 +nan.0))])
+(for*: ([x  (in-list '(-inf.0 -10.0 -1.0 -0.25 -0.0 0.0 0.25 1.0 10.0 +inf.0 +nan.0))]
+        [y  (in-list '(-inf.0 -10.0 -1.0 -0.25 -0.0 0.0 0.25 1.0 10.0 +inf.0 +nan.0))])
   (check-eqv? (fl (matrix-absolute-error (row-matrix [x])
                                          (row-matrix [y])))
               (fl (absolute-error x y))