diff --git a/tldr.py b/tldr.py
index 3749988..a960bb2 100755
--- a/tldr.py
+++ b/tldr.py
@@ -205,7 +205,7 @@ def get_platform() -> str:
 
 
 def get_platform_list() -> List[str]:
-    platforms = ['common'] + list(OS_DIRECTORIES.values())
+    platforms = ['common'] + list(set(OS_DIRECTORIES.values()))
     current_platform = get_platform()
     platforms.remove(current_platform)
     platforms.insert(0, current_platform)