diff --git a/README.md b/README.md
index 3ae1955..7d7cd28 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ The _snack_ executable is now in your `PATH`:
 ``` shell
 $ snack --help
 Usage: <interactive> [-l|--lib DIR] ([-s|--snack-nix PATH] | [--no-snack-nix])
-                     [-j|--cores INT] [-p|--package-file PATH] (COMMAND |
+                     [-j|--jobs INT] [-p|--package-file PATH] (COMMAND |
                      COMMAND)
 
 Available options:
@@ -94,7 +94,7 @@ Available options:
                            (Use --no-snack-nix to disable this behavior)
   --no-snack-nix           Don't use ./snack.nix as the environment (snack.nix)
                            file.
-  -j,--cores INT           How many cores to use during the build
+  -j,--jobs INT            How many jobs to run concurrently
   -p,--package-file PATH   Specifies a YAML or Nix file to use as package
                            description. If not provided, snack looks for either
                            'package.yaml' or 'package.nix' in the current
diff --git a/bin/Snack.hs b/bin/Snack.hs
index 3fe76b2..eedaec5 100644
--- a/bin/Snack.hs
+++ b/bin/Snack.hs
@@ -171,17 +171,17 @@ discoverPackageFile = do
 
 -- | How to call @nix-build@
 newtype NixConfig = NixConfig
-  { nixNCores :: Int }
+  { nixNJobs :: Int }
 
 parseNixConfig :: Opts.Parser NixConfig
 parseNixConfig =
     (NixConfig <$>
         Opts.option Opts.auto
-        (Opts.long "cores"
+        (Opts.long "jobs"
         <> Opts.short 'j'
         <> Opts.value 1
         <> Opts.metavar "INT"
-        <> Opts.help "How many cores to use during the build")
+        <> Opts.help "How many jobs to run concurrently")
         )
 
 --- Snack configuration (unrelated to packages)
@@ -390,8 +390,8 @@ nixBuild snackCfg extraNixArgs nixExpr =
     cliArgs =
       [ "-" -- read expression from stdin
       , "--no-out-link" -- no need for roots
-      -- how many cores to use (-j)
-      , "--cores", T.pack (show (nixNCores nixCfg))
+      -- how many jobs to run concurrently (-j)
+      , "--max-jobs", T.pack (show (nixNJobs nixCfg))
       ] <> (concatMap toCliArgs nixArgs)
     funArgs :: [String]
     funArgs = toFunArg <$> nixArgs