diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for birds-of-paradise
 
+## 0.1.1.0 -- 2020-05-19
+
+* support omega! :-p
+
 ## 0.1.0.0 -- 2020-05-19
 
 * First chirping.
diff --git a/birds-of-paradise.cabal b/birds-of-paradise.cabal
--- a/birds-of-paradise.cabal
+++ b/birds-of-paradise.cabal
@@ -4,7 +4,7 @@
 -- http://haskell.org/cabal/users-guide/
 
 name:                birds-of-paradise
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            Birds of Paradise
 description:         Birds of Paradise is yet another SK combinator library.
 homepage:            https://github.com/cutsea110/birds-of-paradise.git
diff --git a/src/Data/Function/Combinator/Birds.hs b/src/Data/Function/Combinator/Birds.hs
--- a/src/Data/Function/Combinator/Birds.hs
+++ b/src/Data/Function/Combinator/Birds.hs
@@ -47,7 +47,7 @@
   , vireo''
 
   , kite
-  -- , omega
+  , omega
   , konstantMocker
   , crossedKonstantMocker
   , theta
@@ -239,10 +239,11 @@
 kite :: a -> b -> b
 kite _ y = y
 
--- FIXME: Omega is missing because it will fail to compile. :-(
 -- | Omega
--- omega :: a
--- omega = mockingbird mockingbird
+--   The omega bird looks as mockingbird mockingbird.
+--   But, I've implemented this as itself, because omega isn't going to stop anyway.
+omega :: a
+omega = omega -- ^ mockingbird mockingbird
 
 -- | KM
 konstantMocker :: c -> (a -> b) -> b