diff --git a/tests/ScadaLink.Commons.Tests/Types/EnumTests.cs b/tests/ScadaLink.Commons.Tests/Types/EnumTests.cs
index 63105af..a7eaf70 100644
--- a/tests/ScadaLink.Commons.Tests/Types/EnumTests.cs
+++ b/tests/ScadaLink.Commons.Tests/Types/EnumTests.cs
@@ -10,7 +10,7 @@ public class EnumTests
     [InlineData(typeof(DeploymentStatus), new[] { "Pending", "InProgress", "Success", "Failed" })]
     [InlineData(typeof(AlarmState), new[] { "Active", "Normal" })]
     [InlineData(typeof(AlarmLevel), new[] { "None", "Low", "LowLow", "High", "HighHigh" })]
-    [InlineData(typeof(AlarmTriggerType), new[] { "ValueMatch", "RangeViolation", "RateOfChange", "HiLo" })]
+    [InlineData(typeof(AlarmTriggerType), new[] { "ValueMatch", "RangeViolation", "RateOfChange", "HiLo", "Expression" })]
     [InlineData(typeof(ConnectionHealth), new[] { "Connected", "Disconnected", "Connecting", "Error" })]
     public void Enum_ShouldHaveExpectedValues(Type enumType, string[] expectedNames)
     {