diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.2.3.0
+
+-   Add a mime type for .map files
+    [#15](https://github.com/cdepillabout/servant-static-th/pull/15). Thanks
+    [@spencertipping](https://github.com/spencertipping)!
+
 ## v0.2.2.1
 
 -   Update haddocks with a note to use `extra-source-files` in your `.cabal`
diff --git a/servant-static-th.cabal b/servant-static-th.cabal
--- a/servant-static-th.cabal
+++ b/servant-static-th.cabal
@@ -1,5 +1,5 @@
 name:                servant-static-th
-version:             0.2.2.1
+version:             0.2.3.0
 synopsis:            Embed a directory of static files in your Servant server
 description:         Please see <https://github.com/cdepillabout/servant-static-th#readme README.md>.
 homepage:            https://github.com/cdepillabout/servant-static-th
diff --git a/src/Servant/Static/TH/Internal/Mime.hs b/src/Servant/Static/TH/Internal/Mime.hs
--- a/src/Servant/Static/TH/Internal/Mime.hs
+++ b/src/Servant/Static/TH/Internal/Mime.hs
@@ -91,23 +91,24 @@
 extensionMimeTypeMap :: Map String MimeTypeInfo
 extensionMimeTypeMap =
   [ ("css",  MimeTypeInfo [t|CSS|]  [t|ByteString|] byteStringToExp)
+  , ("eot",  MimeTypeInfo [t|EOT|]  [t|ByteString|] byteStringToExp)
+  , ("gexf", MimeTypeInfo [t|GEXF|] [t|ByteString|] byteStringToExp)
   , ("gif",  MimeTypeInfo [t|GIF|]  [t|ByteString|] byteStringToExp)
   , ("htm",  MimeTypeInfo [t|HTML|] [t|Html|]             htmlToExp)
   , ("html", MimeTypeInfo [t|HTML|] [t|Html|]             htmlToExp)
+  , ("ico",  MimeTypeInfo [t|ICO|]  [t|ByteString|] byteStringToExp)
   , ("jpeg", MimeTypeInfo [t|JPEG|] [t|ByteString|] byteStringToExp)
   , ("jpg",  MimeTypeInfo [t|JPEG|] [t|ByteString|] byteStringToExp)
-  , ("ico",  MimeTypeInfo [t|ICO|]  [t|ByteString|] byteStringToExp)
   , ("js",   MimeTypeInfo [t|JS|]   [t|ByteString|] byteStringToExp)
+  , ("json", MimeTypeInfo [t|JSON|] [t|ByteString|] byteStringToExp)
+  , ("map",  MimeTypeInfo [t|JSON|] [t|ByteString|] byteStringToExp)
   , ("png",  MimeTypeInfo [t|PNG|]  [t|ByteString|] byteStringToExp)
   , ("svg",  MimeTypeInfo [t|SVG|]  [t|ByteString|] byteStringToExp)
-  , ("txt",  MimeTypeInfo [t|TXT|]  [t|ByteString|] byteStringToExp)
-  , ("eot",  MimeTypeInfo [t|EOT|]  [t|ByteString|] byteStringToExp)
   , ("ttf",  MimeTypeInfo [t|TTF|]  [t|ByteString|] byteStringToExp)
+  , ("txt",  MimeTypeInfo [t|TXT|]  [t|ByteString|] byteStringToExp)
   , ("woff", MimeTypeInfo [t|WOFF|] [t|ByteString|] byteStringToExp)
   , ("woff2",MimeTypeInfo [t|WOFF2|][t|ByteString|] byteStringToExp)
-  , ("json", MimeTypeInfo [t|JSON|] [t|ByteString|] byteStringToExp)
   , ("xml",  MimeTypeInfo [t|XML|]  [t|ByteString|] byteStringToExp)
-  , ("gexf", MimeTypeInfo [t|GEXF|] [t|ByteString|] byteStringToExp)
   ]
 
 -- | Just like 'extensionToMimeTypeInfo', but throw an error using 'fail' if