diff --git a/src/libraries/System.Text.RegularExpressions/tests/FunctionalTests/Regex.Match.Tests.cs b/src/libraries/System.Text.RegularExpressions/tests/FunctionalTests/Regex.Match.Tests.cs
index 9e6db7976433b2..6ad2275f9584b4 100644
--- a/src/libraries/System.Text.RegularExpressions/tests/FunctionalTests/Regex.Match.Tests.cs
+++ b/src/libraries/System.Text.RegularExpressions/tests/FunctionalTests/Regex.Match.Tests.cs
@@ -2680,7 +2680,7 @@ public async Task MatchNonBacktrackingOver255Minterms()
                 MatchCollection ms = r.Matches(inputString);
                 Assert.Equal(1, ms.Count);
                 Assert.Equal(0, ms[0].Index);
-                Assert.Equal(373, ms[0].Length);
+                Assert.Equal(273, ms[0].Length);
             }
         }
 #endif