diff --git a/single_eval.py b/single_eval.py
index d5c6516..73e986b 100644
--- a/single_eval.py
+++ b/single_eval.py
@@ -26,7 +26,7 @@ model.eval()
 model.to(device)
 
 print("Print ipconfig")
-if platform == linux:
+if platform == "linux":
     os.system("ip r")
 else:
     os.system("ipconfig")