diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 `hslua-module-system` uses [PVP Versioning][].
 
+## hslua-module-system-1.1.0.1
+
+Released 2023-03-26.
+
+-   Improve doc strings.
+
 ## hslua-module-system-1.1.0
 
 -   Update to hslua-2.3; this includes the addition of type
diff --git a/hslua-module-system.cabal b/hslua-module-system.cabal
--- a/hslua-module-system.cabal
+++ b/hslua-module-system.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                hslua-module-system
-version:             1.1.0
+version:             1.1.0.1
 synopsis:            Lua module wrapper around Haskell's System module.
 
 description:         Provides access to system information and
diff --git a/src/HsLua/Module/System.hs b/src/HsLua/Module/System.hs
--- a/src/HsLua/Module/System.hs
+++ b/src/HsLua/Module/System.hs
@@ -161,8 +161,7 @@
   #? T.unlines
      [ "Returns the number of picoseconds CPU time used by the current"
      , "program. The precision of this result may vary in different"
-     , "versions and on different platforms. See also the field"
-     , "`cputime_precision`."
+     , "versions and on different platforms."
      ]
 
 -- | Retrieve the entire environment
@@ -170,8 +169,8 @@
 env = defun "env"
   ### ioToLua Env.getEnvironment
   =#> functionResult (pushKeyValuePairs pushString pushString) "table"
-        "A table mapping environment variable names to their value"
-  #? "Retrieves the entire environment."
+        "A table mapping environment variable names to their value."
+  #? "Retrieves the entire environment as a string-indexed table."
 
 -- | Return the current working directory as an absolute path.
 getwd :: LuaError e => DocumentedFunction e
@@ -298,9 +297,9 @@
               Lua.liftIO (Directory.setCurrentDirectory fp)
               callback `invokeWithFilePath` fp))
   <#> filepathParam "directory"
-        "Directory in which the given `callback` should be executed."
+        "Directory in which the given `callback` should be executed"
   <#> parameter peekCallback "function" "callback"
-        "Action to execute in the given directory."
+        "Action to execute in the given directory"
   =?> "The results of the call to `callback`."
   #? T.unwords
      [ "Run an action within a different directory. This function will"
@@ -358,8 +357,10 @@
         ("Function which takes the name of the temporary directory as "
          `T.append` "its first argument.")
   =?> "The results of the call to `callback`."
-  #? ("Create and use a temporary directory inside the given directory."
-      `T.append` "The directory is deleted after use.")
+  #? T.unlines
+     [ "Create and use a temporary directory inside the given directory."
+     , "The directory is deleted after the callback returns."
+     ]
   where
     peekParentDir idx = do
       args <- liftLua gettop