diff --git a/src/command/build.rs b/src/command/build.rs
index c97ca71..11a8dd8 100644
--- a/src/command/build.rs
+++ b/src/command/build.rs
@@ -7,8 +7,8 @@ pub use super::apply::run;
 
 pub fn subcommand() -> App<'static> {
     let command = App::new("build")
-        .about("Build the configuration but not push to remote machines")
-        .long_about(r#"Build the configuration but not push to remote machines
+        .about("Build configurations but not push to remote machines")
+        .long_about(r#"Build configurations but not push to remote machines
 
 This subcommand behaves as if you invoked `apply` with the `build` goal."#)
         .arg(Arg::new("goal")
diff --git a/src/command/eval.rs b/src/command/eval.rs
index 859d7dc..6c8125b 100644
--- a/src/command/eval.rs
+++ b/src/command/eval.rs
@@ -7,8 +7,8 @@ use crate::nix::NixError;
 
 pub fn subcommand() -> App<'static> {
     App::new("eval")
-        .about("Evaluate expressions using the complete configuration")
-        .long_about(r#"Evaluate expressions using the complete configuration
+        .about("Evaluate an expression using the complete configuration")
+        .long_about(r#"Evaluate an expression using the complete configuration
 
 Your expression should take an attribute set with keys `pkgs`, `lib` and `nodes` (like a NixOS module) and return a JSON-serializable value.