diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -199,12 +199,12 @@
 ```
 niv - dependency manager for Nix projects
 
-version: 0.2.7
+version: 0.2.8
 
-Usage: niv [-s|--sources-json FILE] COMMAND
+Usage: niv [-s|--sources-file FILE] COMMAND
 
 Available options:
-  -s,--sources-json FILE   Use FILE instead of nix/sources.json
+  -s,--sources-file FILE   Use FILE instead of nix/sources.json
   -h,--help                Show this help text
 
 Available commands:
diff --git a/niv.cabal b/niv.cabal
--- a/niv.cabal
+++ b/niv.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: fa195ed5e0022f61a4a4b7bad1e7f0833533c6faada195dd2b28be43880f14f0
+-- hash: 14c279b685996f9b3420df0072e55b06a86c006a89759d44af1aec9f515dab88
 
 name:           niv
-version:        0.2.7
+version:        0.2.8
 synopsis:       Easy dependency management for Nix projects
 description:    Easy dependency management for Nix projects.
 category:       Development
diff --git a/src/Niv/Cli.hs b/src/Niv/Cli.hs
--- a/src/Niv/Cli.hs
+++ b/src/Niv/Cli.hs
@@ -69,7 +69,7 @@
       ]
     parseFindSourcesJson =
       AtPath <$> Opts.strOption (
-        Opts.long "sources-json" <>
+        Opts.long "sources-file" <>
         Opts.short 's' <>
         Opts.metavar "FILE" <>
         Opts.help "Use FILE instead of nix/sources.json"
@@ -154,7 +154,7 @@
                   , "You are using a custom path for sources.json."
                   ]
             , "  You need to configure the sources.nix to use " <> tbold (T.pack fp) <> ":"
-            , tbold "      import sources.nix { sourcesJson = PATH ; }; "
+            , tbold "      import sources.nix { sourcesFile = PATH ; }; "
             , T.unwords
                   [ "  where", tbold "PATH", "is the relative path from sources.nix to"
                   , tbold (T.pack fp) <> "." ]