diff --git a/src/tools/miri/miri-script/src/commands.rs b/src/tools/miri/miri-script/src/commands.rs
index b7031d9a3ee..e7a5b559195 100644
--- a/src/tools/miri/miri-script/src/commands.rs
+++ b/src/tools/miri/miri-script/src/commands.rs
@@ -102,8 +102,8 @@ fn start_josh() -> Result<impl Drop> {
         cmd.stdout(process::Stdio::null());
         cmd.stderr(process::Stdio::null());
         let josh = cmd.spawn().context("failed to start josh-proxy, make sure it is installed")?;
-        // Give it some time so hopefully the port is open. (10ms was not enough.)
-        thread::sleep(time::Duration::from_millis(100));
+        // Give it some time so hopefully the port is open. (100ms was not enough.)
+        thread::sleep(time::Duration::from_millis(200));
 
         // Create a wrapper that stops it on drop.
         struct Josh(process::Child);