diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit.Tests/Utils/IndentationStringTests.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit.Tests/Utils/IndentationStringTests.cs
index 442dd2e4d3..7cee7a3547 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit.Tests/Utils/IndentationStringTests.cs
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit.Tests/Utils/IndentationStringTests.cs
@@ -18,11 +18,11 @@ namespace ICSharpCode.AvalonEdit.Tests.Utils
 		{
 			var options = new TextEditorOptions { IndentationSize = 4, ConvertTabsToSpaces = false };
 			Assert.AreEqual("\t", options.IndentationString);
-			Assert.AreEqual("\t", options.GetIndentationString(1));
 			Assert.AreEqual("\t", options.GetIndentationString(2));
 			Assert.AreEqual("\t", options.GetIndentationString(3));
 			Assert.AreEqual("\t", options.GetIndentationString(4));
 			Assert.AreEqual("\t", options.GetIndentationString(5));
+			Assert.AreEqual("\t", options.GetIndentationString(6));
 		}
 		
 		[Test]
@@ -30,11 +30,11 @@ namespace ICSharpCode.AvalonEdit.Tests.Utils
 		{
 			var options = new TextEditorOptions { IndentationSize = 4, ConvertTabsToSpaces = true };
 			Assert.AreEqual("    ", options.IndentationString);
-			Assert.AreEqual("   ", options.GetIndentationString(1));
-			Assert.AreEqual("  ", options.GetIndentationString(2));
-			Assert.AreEqual(" ", options.GetIndentationString(3));
-			Assert.AreEqual("    ", options.GetIndentationString(4));
-			Assert.AreEqual("   ", options.GetIndentationString(5));
+			Assert.AreEqual("   ", options.GetIndentationString(2));
+			Assert.AreEqual("  ", options.GetIndentationString(3));
+			Assert.AreEqual(" ", options.GetIndentationString(4));
+			Assert.AreEqual("    ", options.GetIndentationString(5));
+			Assert.AreEqual("   ", options.GetIndentationString(6));
 		}
 	}
 }