diff --git a/utils/torch_utils.py b/utils/torch_utils.py
index 8219ccc9..2fa2b275 100644
--- a/utils/torch_utils.py
+++ b/utils/torch_utils.py
@@ -21,7 +21,7 @@ def select_device(force_cpu=False, apex=False):
         c = 1024 ** 2  # bytes to MB
         ng = torch.cuda.device_count()
         x = [torch.cuda.get_device_properties(i) for i in range(ng)]
-        cuda_str = 'Using CUDA ' + 'Apex ' if apex else ''
+        cuda_str = 'Using CUDA ' + ('Apex ' if apex else '')
         for i in range(0, ng):
             if i == 1:
                 # torch.cuda.set_device(0)  # OPTIONAL: Set GPU ID