diff --git a/src/Umbraco.Web/Models/Mapping/ContentTypeMapDefinition.cs b/src/Umbraco.Web/Models/Mapping/ContentTypeMapDefinition.cs
index 528d5f6de5..9b8936a43c 100644
--- a/src/Umbraco.Web/Models/Mapping/ContentTypeMapDefinition.cs
+++ b/src/Umbraco.Web/Models/Mapping/ContentTypeMapDefinition.cs
@@ -223,7 +223,11 @@ namespace Umbraco.Web.Models.Mapping
             target.DataTypeKey = source.DataTypeKey;
             target.Mandatory = source.Validation.Mandatory;
             target.ValidationRegExp = source.Validation.Pattern;
-            target.Variations = source.AllowCultureVariant ? ContentVariation.Culture : ContentVariation.Nothing;
+            target.Variations = source.AllowCultureVariant
+                // Set culture flag
+                ? target.Variations | ContentVariation.Culture
+                // Unset culture flag
+                : target.Variations & ~ContentVariation.Culture;
 
             if (source.Id > 0)
                 target.Id = source.Id;
@@ -395,9 +399,11 @@ namespace Umbraco.Web.Models.Mapping
 
             if (!(target is IMemberType))
             {
-                target.Variations = ContentVariation.Nothing;
-                if (source.AllowCultureVariant)
-                    target.Variations |= ContentVariation.Culture;
+                target.Variations = source.AllowCultureVariant
+                    // Set culture flag
+                    ? target.Variations | ContentVariation.Culture
+                    // Unset culture flag
+                    : target.Variations & ~ContentVariation.Culture;
             }
 
             // handle property groups and property types