diff --git a/src/Umbraco.Core/Persistence/Repositories/Implement/ContentTypeRepositoryBase.cs b/src/Umbraco.Core/Persistence/Repositories/Implement/ContentTypeRepositoryBase.cs
index 357798a8a9..951a4d4763 100644
--- a/src/Umbraco.Core/Persistence/Repositories/Implement/ContentTypeRepositoryBase.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/Implement/ContentTypeRepositoryBase.cs
@@ -1184,7 +1184,7 @@ AND umbracoNode.id <> @id",
         {
             // first clear dependencies
             Database.Delete<TagRelationshipDto>("WHERE propertyTypeId = @Id", new { Id = propertyTypeId });
-            Database.Delete<PropertyDataDto>("WHERE propertytypeid = @Id", new { Id = propertyTypeId });
+            Database.Delete<PropertyDataDto>("WHERE propertyTypeId = @Id", new { Id = propertyTypeId });
 
             // then delete the property type
             Database.Delete<PropertyTypeDto>("WHERE contentTypeId = @Id AND id = @PropertyTypeId",