diff --git a/xtask/src/install.rs b/xtask/src/install.rs
index 3df021acc3..1d13b26da9 100644
--- a/xtask/src/install.rs
+++ b/xtask/src/install.rs
@@ -4,7 +4,10 @@ use std::{env, path::PathBuf, str};
 
 use anyhow::{bail, format_err, Context, Result};
 
-use crate::not_bash::{pushd, run};
+use crate::{
+    not_bash::{pushd, run},
+    project_root,
+};
 
 // Latest stable, feel free to send a PR if this lags behind.
 const REQUIRED_RUST_VERSION: u32 = 41;
@@ -24,6 +27,7 @@ pub struct ServerOpt {
 
 impl InstallCmd {
     pub fn run(self) -> Result<()> {
+        let _dir = pushd(project_root());
         let both = self.server.is_some() && self.client.is_some();
         if cfg!(target_os = "macos") {
             fix_path_for_mac().context("Fix path for mac")?
diff --git a/xtask/src/not_bash.rs b/xtask/src/not_bash.rs
index d5577cce92..c49ad671d5 100644
--- a/xtask/src/not_bash.rs
+++ b/xtask/src/not_bash.rs
@@ -130,6 +130,7 @@ impl Env {
     }
 
     fn pushd(&mut self, dir: PathBuf) {
+        let dir = self.cwd().join(dir);
         self.pushd_stack.push(dir)
     }
     fn popd(&mut self) {