diff --git a/Jint.Tests.PublicInterface/HostOverloadScoringTests.cs b/Jint.Tests.PublicInterface/HostOverloadScoringTests.cs
index 6d981a14ed..1cb6ba6516 100644
--- a/Jint.Tests.PublicInterface/HostOverloadScoringTests.cs
+++ b/Jint.Tests.PublicInterface/HostOverloadScoringTests.cs
@@ -61,7 +61,7 @@ public int CountMatches(Predicate<string> predicate)
             return count;
         }
 
-        public string DescribeTemperature(Fahrenheit temperature) => $"{temperature.Degrees}F";
+        public string DescribeTemperature(Fahrenheit temperature) => FormattableString.Invariant($"{temperature.Degrees}F");
 
         public string DescribeUnit(LengthUnit unit) => $"unit {(int) unit}";