diff --git a/ClosedXML_Tests/Excel/CalcEngine/FunctionsTests.cs b/ClosedXML_Tests/Excel/CalcEngine/FunctionsTests.cs
index f43aa6a..5866799 100644
--- a/ClosedXML_Tests/Excel/CalcEngine/FunctionsTests.cs
+++ b/ClosedXML_Tests/Excel/CalcEngine/FunctionsTests.cs
@@ -8,7 +8,7 @@
     [TestFixture]
     public class FunctionsTests
     {
-        [TestFixtureSetUp]
+        [OneTimeSetUp]
         public void Init()
         {
             // Make sure tests run on a deterministic culture