diff --git a/tests/HydraScript.IntegrationTests/ErrorPrograms/VoidAssignmentTests.cs b/tests/HydraScript.IntegrationTests/ErrorPrograms/VoidAssignmentTests.cs
index 481a864..43af6a1 100644
--- a/tests/HydraScript.IntegrationTests/ErrorPrograms/VoidAssignmentTests.cs
+++ b/tests/HydraScript.IntegrationTests/ErrorPrograms/VoidAssignmentTests.cs
@@ -20,5 +20,7 @@ function func(b: boolean) {
             services => services.SetupInMemoryScript(script));
         var code = runner.Invoke(fixture.InMemoryScript);
         code.Should().Be(ExitCodes.HydraScriptError);
+        fixture.LogMessages.Should()
+            .Contain(x => x.Contains("Cannot assign void"));
     }
 }
\ No newline at end of file