diff --git a/env/env.rs b/env/env.rs
index 980952c57..4d31620be 100644
--- a/env/env.rs
+++ b/env/env.rs
@@ -190,10 +190,13 @@ fn main() {
 
     match opts.program {
         [ref prog, ..args] => {
-            let exit = std::run::process_status(prog.as_slice(), args.as_slice());
-            match exit {
-                std::io::process::ExitStatus(status) => std::os::set_exit_status(status),
-                _ => std::os::set_exit_status(1)
+            match std::run::process_status(prog.as_slice(), args.as_slice()) {
+                Some(exit) => 
+                    match exit {
+                        std::io::process::ExitStatus(status) => std::os::set_exit_status(status),
+                        _ => std::os::set_exit_status(1)
+                    },
+                None => std::os::set_exit_status(1)
             }
         }