diff --git a/src/Umbraco.Cms.Api.Management/Controllers/ModelsBuilder/BuildModelsBuilderController.cs b/src/Umbraco.Cms.Api.Management/Controllers/ModelsBuilder/BuildModelsBuilderController.cs
index 9d5f67cb1f..14adb70c3b 100644
--- a/src/Umbraco.Cms.Api.Management/Controllers/ModelsBuilder/BuildModelsBuilderController.cs
+++ b/src/Umbraco.Cms.Api.Management/Controllers/ModelsBuilder/BuildModelsBuilderController.cs
@@ -1,8 +1,9 @@
-using System;
+using System;
 using System.Threading.Tasks;
 using Asp.Versioning;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
 using Umbraco.Cms.Core.Configuration.Models;
 using Umbraco.Cms.Infrastructure.ModelsBuilder;
@@ -16,12 +17,13 @@ public class BuildModelsBuilderController : ModelsBuilderControllerBase
 {
     private ModelsBuilderSettings _modelsBuilderSettings;
     private readonly ModelsGenerationError _mbErrors;
-    private readonly ModelsGenerator _modelGenerator;
+    private readonly IModelsGenerator _modelGenerator;
 
+    [ActivatorUtilitiesConstructor]
     public BuildModelsBuilderController(
         IOptionsMonitor<ModelsBuilderSettings> modelsBuilderSettings,
         ModelsGenerationError mbErrors,
-        ModelsGenerator modelGenerator)
+        IModelsGenerator modelGenerator)
     {
         _mbErrors = mbErrors;
         _modelGenerator = modelGenerator;
@@ -30,6 +32,26 @@ public class BuildModelsBuilderController : ModelsBuilderControllerBase
         modelsBuilderSettings.OnChange(x => _modelsBuilderSettings = x);
     }
 
+    [Obsolete("Please use the constructor that accepts IModelsGenerator only. Will be removed in V16.")]
+    public BuildModelsBuilderController(
+        IOptionsMonitor<ModelsBuilderSettings> modelsBuilderSettings,
+        ModelsGenerationError mbErrors,
+        ModelsGenerator modelGenerator)
+        : this(modelsBuilderSettings, mbErrors, (IModelsGenerator)modelGenerator)
+    {
+    }
+
+    // this constructor is required for the DI, otherwise it'll throw an "Ambiguous Constructor" errors at boot time.
+    [Obsolete("Please use the constructor that accepts IModelsGenerator only. Will be removed in V16.")]
+    public BuildModelsBuilderController(
+        IOptionsMonitor<ModelsBuilderSettings> modelsBuilderSettings,
+        ModelsGenerationError mbErrors,
+        IModelsGenerator modelGenerator,
+        ModelsGenerator notUsed)
+        : this(modelsBuilderSettings, mbErrors, modelGenerator)
+    {
+    }
+
     [HttpPost("build")]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status428PreconditionRequired)]