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-rw-r--r--lib/pure/selectors.nim3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/pure/selectors.nim b/lib/pure/selectors.nim
index e89cc7447..933b5491a 100644
--- a/lib/pure/selectors.nim
+++ b/lib/pure/selectors.nim
@@ -47,6 +47,9 @@ when defined(nimdoc):
     Selector*[T] = ref object
       ## An object which holds descriptors to be checked for read/write status
 
+    IOSelectorsException* = object of CatchableError
+      ## Exception that is raised if an IOSelectors error occurs.
+
     Event* {.pure.} = enum
       ## An enum which hold event types
       Read,        ## Descriptor is available for read