diff --git a/run.py b/run.py
index a9570fc..fe74a2c 100644
--- a/run.py
+++ b/run.py
@@ -68,7 +68,7 @@ def pre_check():
         CUDA_VERSION = torch.version.cuda
         CUDNN_VERSION = torch.backends.cudnn.version()
         NVIDIA_PROVIDERS = ['CUDAExecutionProvider', 'TensorrtExecutionProvider']
-        if list(set(core.globals.providers) - set(NVIDIA_PROVIDERS)) > 1:
+        if len(list(set(core.globals.providers) - set(NVIDIA_PROVIDERS))) > 1:
             if not torch.cuda.is_available() or not CUDA_VERSION:
                 quit("You are using --gpu flag but CUDA isn't available or properly installed on your system.")
             if CUDA_VERSION > '11.8':