diff --git a/agent.py b/agent.py
index c9fef42..128b4d0 100644
--- a/agent.py
+++ b/agent.py
@@ -171,7 +171,7 @@ class ServerData:
                 # Get the output of nvme id-ctrl command
                 output = subprocess.check_output(['nvme', 'id-ctrl', device_path], stderr=subprocess.STDOUT, universal_newlines=True)
             except subprocess.CalledProcessError as e:
-                print(f"Failed to get nvme id-ctrl output for {device_path}: {e}")
+                print("Failed to get nvme id-ctrl output for {}: {}".format(device_path, e))
                 continue
 
             # Split the output into lines