diff --git a/src/cli.rs b/src/cli.rs
index d9b36f4a..ae695893 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -14,6 +14,7 @@ use clap::crate_authors;
 use clap::crate_version;
 use clap::Command;
 use clap::Arg;
+use clap::ArgAction;
 use clap::ArgGroup;
 use clap::builder::PossibleValuesParser;
 use clap::builder::ValueParser;
@@ -465,8 +466,9 @@ pub fn cli() -> Command {
 
             .arg(Arg::new("env")
                 .required(false)
-                .num_args(0)
+                .num_args(1)
                 .short('E')
+                .action(ArgAction::Set)
                 .long("env")
                 .value_parser(ValueParser::new(env_pass_validator))
                 .help("Pass environment variable to all build jobs")