diff --git a/lib/pure/includes/osseps.nim b/lib/pure/includes/osseps.nim
index bfe75bbaa74f3..bafef686d54b3 100644
--- a/lib/pure/includes/osseps.nim
+++ b/lib/pure/includes/osseps.nim
@@ -35,7 +35,6 @@ const
 
   AltSep* =
     when doslikeFileSystem: '/'
-    elif defined(haiku): ':'
     else: DirSep
     ## An alternative character used by the operating system to separate
     ## pathname components, or the same as `DirSep <#DirSep>`_ if only one separator