diff --git a/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs b/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
index 0090b26361..821c906e86 100644
--- a/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
+++ b/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
@@ -130,7 +130,8 @@ internal class BuiltinFunctionsCore
         public static readonly TexlFunction IsError = _library.Add(new IsErrorFunction());
         public static readonly TexlFunction IsNumeric = _library.Add(new IsNumericFunction());
         public static readonly TexlFunction ISOWeekNum = _library.Add(new ISOWeekNumFunction());
-        public static readonly TexlFunction IsToday = _library.Add(new IsTodayFunction());
+        public static readonly TexlFunction IsToday = _library.Add(new IsTodayFunction());
+        public static readonly TexlFunction IsType = _library.Add(new IsTypeFunction());
         public static readonly TexlFunction Language = _library.Add(new LanguageFunction());
         public static readonly TexlFunction Last = _library.Add(new FirstLastFunction(isFirst: false));
         public static readonly TexlFunction Last_UO = _library.Add(new FirstLastFunction_UO(isFirst: false));
diff --git a/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/IsType.cs b/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/IsType.cs
index 66525d3bb2..483a9eef50 100644
--- a/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/IsType.cs
+++ b/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/IsType.cs
@@ -13,7 +13,7 @@
 using Microsoft.PowerFx.Core.Utils;
 using Microsoft.PowerFx.Syntax;
 
-namespace Microsoft.AppMagic.Authoring.Texl
+namespace Microsoft.PowerFx.Core.Texl.Builtins
 {
     // IsType(record:P, table:*[]): b
     internal sealed class IsTypeFunction : BuiltinFunction