diff --git a/comfy/latent_formats.py b/comfy/latent_formats.py
index 5600825ed..38f18a83f 100644
--- a/comfy/latent_formats.py
+++ b/comfy/latent_formats.py
@@ -594,6 +594,7 @@ class Wan22(Wan21):
 class HunyuanImage21(LatentFormat):
     latent_channels = 64
     latent_dimensions = 2
+    spacial_downscale_ratio = 32
     scale_factor = 0.75289
 
     latent_rgb_factors = [
@@ -727,6 +728,7 @@ class HunyuanVideo15(LatentFormat):
     latent_rgb_factors_bias = [ 0.0456, -0.0202, -0.0644]
     latent_channels = 32
     latent_dimensions = 3
+    spacial_downscale_ratio = 16
     scale_factor = 1.03682
     taesd_decoder_name = "lighttaehy1_5"