diff --git a/magic-nix-cache/src/main.rs b/magic-nix-cache/src/main.rs
index c30c7bc..79d0f9e 100644
--- a/magic-nix-cache/src/main.rs
+++ b/magic-nix-cache/src/main.rs
@@ -235,7 +235,7 @@ async fn main_cli() {
             .expect("Creating a temporary file");
         file.write_all(
             format!(
-                "#! /bin/sh\nexec {} --server {}\n",
+                "#! /bin/sh\nexec env RUST_BACKTRACE=full {} --server {}\n",
                 std::env::current_exe()
                     .expect("Getting the path of magic-nix-cache")
                     .display(),