diff --git a/mcp/mcp-image-gen/src/workflows/flux2_klein_heretic.json b/mcp/mcp-image-gen/src/workflows/flux2_klein_heretic.json
index 2bf8f32..13d0b8b 100644
--- a/mcp/mcp-image-gen/src/workflows/flux2_klein_heretic.json
+++ b/mcp/mcp-image-gen/src/workflows/flux2_klein_heretic.json
@@ -2,7 +2,7 @@
   "1": {
     "class_type": "CLIPLoader",
     "inputs": {
-      "clip_name": "qwen_3_4b_bfl.safetensors",
+      "clip_name": "qwen_3_4b_klein.safetensors",
       "type": "flux2",
       "device": "default"
     }
diff --git a/mcp/mcp-image-gen/tests/test_server.py b/mcp/mcp-image-gen/tests/test_server.py
index 24f0184..5fe672f 100644
--- a/mcp/mcp-image-gen/tests/test_server.py
+++ b/mcp/mcp-image-gen/tests/test_server.py
@@ -67,6 +67,7 @@ def test_build_flux_workflow_heretic_model():
     assert wf["1"]["class_type"] == "CLIPLoader"          # Qwen3-4B uses single CLIPLoader
     assert wf["1"]["inputs"]["type"] == "flux2"            # correct type for FLUX.2
     assert wf["1"]["inputs"]["device"] == "default"        # required for FLUX.2 CLIPLoader
+    assert wf["1"]["inputs"]["clip_name"] == "qwen_3_4b_klein.safetensors"  # Comfy-Org/vae-text-encorder-for-flux-klein-4b
     assert wf["2"]["class_type"] == "CLIPTextEncode"       # standard CLIP encode (not Flux-specific)
     assert wf["4"]["class_type"] == "UNETLoader"
     assert wf["4"]["inputs"]["unet_name"] == "flux-2-klein-4b.safetensors"