diff --git a/src/keylogger_detector.py b/src/keylogger_detector.py
index 5676eb9..c8739a8 100755
--- a/src/keylogger_detector.py
+++ b/src/keylogger_detector.py
@@ -131,7 +131,7 @@ def detect_keyloggers():
     pids = []
     for device_file in keyboard_device_files:
         pids.append(get_pids_using_file(device_file))
-    pids = sorted(list(set(pids)))
+    pids = sorted(list(set(int(pid) for pid in pids)))
     if verbose_option:
         print('[Verbose] Process IDs using keyboard device files:', pids)
 
diff --git a/src/utils.py b/src/utils.py
index b7cb085..1f953af 100755
--- a/src/utils.py
+++ b/src/utils.py
@@ -46,7 +46,7 @@ def get_keyboard_device_files(names):
     keyboard_device_files = []
     for root, dirs, files in os.walk('/dev/input/by-path'):
         for file in files:
-            if any(name in files for name in names):
+            if any(name in file for name in names):
                 keyboard_device_files.append(get_real_path(os.path.join(root, file)))
     return keyboard_device_files