diff --git a/src/Data/Thyme/Clock/Internal.hs b/src/Data/Thyme/Clock/Internal.hs
--- a/src/Data/Thyme/Clock/Internal.hs
+++ b/src/Data/Thyme/Clock/Internal.hs
@@ -215,7 +215,7 @@
 -- <http://en.wikipedia.org/wiki/DUT1 DUT1>.
 newtype UniversalTime = UniversalRep NominalDiffTime deriving (INSTANCES_MICRO)
 
-derivingUnbox "UnversalTime" [t| UniversalTime -> NominalDiffTime |]
+derivingUnbox "UniversalTime" [t| UniversalTime -> NominalDiffTime |]
     [| \ (UniversalRep a) -> a |] [| UniversalRep |]
 
 -- | View 'UniversalTime' as a fractional number of days since the
diff --git a/src/Data/Thyme/Format.hs b/src/Data/Thyme/Format.hs
--- a/src/Data/Thyme/Format.hs
+++ b/src/Data/Thyme/Format.hs
@@ -466,24 +466,23 @@
         tpPOSIXTime = zeroV
         tpTimeZone = utc
 
-{-# INLINE buildTimeParser #-}
-buildTimeParser :: (ParseTime t) => TimeLocale -> String -> Parser t
-buildTimeParser l spec = buildTime
-    <$ P.skipSpace <*> timeParser l spec <* P.skipSpace <* P.endOfInput
-
 {-# INLINEABLE parseTime #-}
 parseTime :: (ParseTime t) => TimeLocale -> String -> String -> Maybe t
 parseTime l spec = either (const Nothing) Just
-    . P.parseOnly (buildTimeParser l spec) . utf8String
+        . P.parseOnly parser . utf8String where
+    parser = buildTime <$ P.skipSpace <*> timeParser l spec
+        <* P.skipSpace <* P.endOfInput
 
 {-# INLINEABLE readTime #-}
 readTime :: (ParseTime t) => TimeLocale -> String -> String -> t
-readTime l spec = either error id
-    . P.parseOnly (buildTimeParser l spec) . utf8String
+readTime l spec = either error id . P.parseOnly parser . utf8String where
+    parser = buildTime <$ P.skipSpace <*> timeParser l spec
+        <* P.skipSpace <* P.endOfInput
 
 {-# INLINEABLE readsTime #-}
 readsTime :: (ParseTime t) => TimeLocale -> String -> ReadS t
-readsTime l = parserToReadS . buildTimeParser l
+readsTime l spec = parserToReadS $
+    buildTime <$ P.skipSpace <*> timeParser l spec
 
 ------------------------------------------------------------------------
 
diff --git a/thyme.cabal b/thyme.cabal
--- a/thyme.cabal
+++ b/thyme.cabal
@@ -1,5 +1,5 @@
 name:           thyme
-version:        0.3.5.4
+version:        0.3.5.5
 synopsis:       A faster time library
 description:
     Thyme is a rewrite of the fine @time@ library, with a particular focus