diff --git a/src/bin/dosh-client.rs b/src/bin/dosh-client.rs
index e13b27f..1da07df 100644
--- a/src/bin/dosh-client.rs
+++ b/src/bin/dosh-client.rs
@@ -1561,12 +1561,14 @@ fn run_update(config: &dosh::config::ClientConfig, check_only: bool) -> Result<(
         .unwrap_or_else(|| expand_tilde("~/.cache"))
         .join("dosh")
         .join("source");
+    let use_prebuilt = std::env::var("DOSH_USE_PREBUILT").unwrap_or_else(|_| "1".to_string());
     let mut script = format!(
-        "curl -fsSL {} | DOSH_REPO={} DOSH_PORT={} DOSH_UPDATE_CACHE={} DOSH_UPDATE_QUIET=1 DOSH_USE_PREBUILT=1 sh -s -- client",
+        "curl -fsSL {} | DOSH_REPO={} DOSH_PORT={} DOSH_UPDATE_CACHE={} DOSH_UPDATE_QUIET=1 DOSH_USE_PREBUILT={} sh -s -- client",
         shell_word(&installer),
         shell_word(&repo),
         config.update_port.unwrap_or(config.dosh_port),
-        shell_word(&update_cache.display().to_string())
+        shell_word(&update_cache.display().to_string()),
+        shell_word(&use_prebuilt)
     );
     if config.server != "user@example.com" {
         script.push_str(&format!(" --server {}", shell_word(&config.server)));