diff --git a/servant-serf.cabal b/servant-serf.cabal
--- a/servant-serf.cabal
+++ b/servant-serf.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.0
 
 name: servant-serf
-version: 0.3.0.1
+version: 0.3.1.0
 synopsis: Automatically generate Servant API modules.
 description:
   = servant-serf
@@ -50,7 +50,7 @@
   @API@. Note that the same name is used for both referenced API types and the
   generated API type.
   .
-  - @server-name=STRING@: Sets the name to use for the server value. Defaults
+  - @--server-name=STRING@: Sets the name to use for the server value. Defaults
   to @server@. Note that the same name is used for both referenced server
   values and the generated server value.
   .
diff --git a/source/library/ServantSerf/Module.hs b/source/library/ServantSerf/Module.hs
--- a/source/library/ServantSerf/Module.hs
+++ b/source/library/ServantSerf/Module.hs
@@ -21,7 +21,8 @@
           $ Context.source context
       Just x -> ModuleName.toString x
     moduleNames =
-      fmap ModuleName.toString
+      filter (not . List.isSuffixOf (Config.excludeSuffix config))
+        . fmap ModuleName.toString
         . List.sort
         . Maybe.mapMaybe ModuleName.fromFilePath
         $ filter (FilePath.isExtensionOf "hs") files
diff --git a/source/library/ServantSerf/Type/Config.hs b/source/library/ServantSerf/Type/Config.hs
--- a/source/library/ServantSerf/Type/Config.hs
+++ b/source/library/ServantSerf/Type/Config.hs
@@ -11,6 +11,7 @@
 data Config = Config
   { apiName :: String
   , depth :: Depth.Depth
+  , excludeSuffix :: String
   , help :: Bool
   , moduleName :: Maybe ModuleName.ModuleName
   , serverName :: String
@@ -27,6 +28,7 @@
   Flag.Depth x -> case Depth.fromString x of
     Nothing -> Exception.throwM $ InvalidDepth.InvalidDepth x
     Just y -> pure config { depth = y }
+  Flag.ExcludeSuffix x -> pure config { excludeSuffix = x }
   Flag.Help -> pure config { help = True }
   Flag.ModuleName x -> case ModuleName.fromString x of
     Nothing -> Exception.throwM $ InvalidModuleName.InvalidModuleName x
@@ -38,6 +40,7 @@
 initial = Config
   { apiName = "API"
   , depth = Depth.Deep
+  , excludeSuffix = ""
   , help = False
   , moduleName = Nothing
   , serverName = "server"
diff --git a/source/library/ServantSerf/Type/Flag.hs b/source/library/ServantSerf/Type/Flag.hs
--- a/source/library/ServantSerf/Type/Flag.hs
+++ b/source/library/ServantSerf/Type/Flag.hs
@@ -5,6 +5,7 @@
 data Flag
     = ApiName String
     | Depth String
+    | ExcludeSuffix String
     | Help
     | ModuleName String
     | ServerName String
@@ -33,6 +34,11 @@
     ["depth"]
     (Console.ReqArg Depth "DEPTH")
     "Controls whether to search through only one directory (`shallow`) or recursively (`deep`). Defaults to `deep`."
+  , Console.Option
+    []
+    ["exclude-suffix"]
+    (Console.ReqArg ExcludeSuffix "SUFFIX")
+    "Sets the module suffix to exclude. Defaults to the empty string."
   , Console.Option
     []
     ["module-name"]