diff --git a/comfy_extras/nodes_longcat_image.py b/comfy_extras/nodes_longcat_image.py
index 6e8178cdb..59402dfa0 100644
--- a/comfy_extras/nodes_longcat_image.py
+++ b/comfy_extras/nodes_longcat_image.py
@@ -1,7 +1,11 @@
+import logging
+
 import torch
 from typing_extensions import override
 from comfy_api.latest import ComfyExtension, io
 
+logger = logging.getLogger(__name__)
+
 
 class CLIPTextEncodeLongCatImage(io.ComfyNode):
     @classmethod
@@ -61,6 +65,10 @@ class CFGRenormLongCatImage(io.ComfyNode):
             B, C, H, W = denoised.shape
             ps = 2
 
+            if H % ps != 0 or W % ps != 0:
+                logger.warning(f"CFG Renorm: incompatible shape {H}x{W}, skipping renorm")
+                return denoised
+
             noise = x - denoised
             noise_cond = x - cond_denoised