diff --git a/comfy/customzluda/zluda.py b/comfy/customzluda/zluda.py
index ff73a0b5b..cd87323b6 100644
--- a/comfy/customzluda/zluda.py
+++ b/comfy/customzluda/zluda.py
@@ -652,7 +652,11 @@ def do_hijack():
     print("  ::  Configuring PyTorch backends...")
     torch.backends.cuda.enable_mem_efficient_sdp(False)
     torch.backends.cuda.enable_mem_efficient_sdp = do_nothing
-    torch.backends.cudnn.enabled = True
+    torch.backends.cudnn.enabled = os.environ.get("TORCH_BACKENDS_CUDNN_ENABLED", "1").strip().lower() not in {"0", "off", "false", "disable", "disabled", "no"}
+    if torch.backends.cudnn.enabled:
+        print("  ::  Enabled cuDNN")
+    else:
+        print("  ::  Disabled cuDNN")
     if hasattr(torch.backends.cuda, "enable_flash_sdp"):
         torch.backends.cuda.enable_flash_sdp(True)
         print("  ::  Disabled CUDA flash attention")