diff --git a/modules/lang/rust/config.el b/modules/lang/rust/config.el
index 22e5b8bf9..7afabf06e 100644
--- a/modules/lang/rust/config.el
+++ b/modules/lang/rust/config.el
@@ -24,13 +24,15 @@
   :init
   (add-hook! 'rust-mode-hook #'(racer-mode eldoc-mode flycheck-rust-setup))
   :config
-  (setq racer-cmd (expand-file-name "racer/target/release/racer" +rust-src-dir)
-        racer-rust-src-path (expand-file-name "rust/src/" +rust-src-dir))
-
-  (set! :jump 'rust-mode :definition #'racer-find-definition)
+  (setq racer-cmd (or (executable-find "racer")
+                      (expand-file-name "racer/target/release/racer" +rust-src-dir))
+        racer-rust-src-path (or (getenv "RUST_SRC_PATH")
+                                (expand-file-name "rust/src/" +rust-src-dir)))
 
   (unless (file-exists-p racer-cmd)
-    (warn "rust-mode: racer binary can't be found; auto-completion is disabled")))
+    (warn "rust-mode: racer binary can't be found; auto-completion is disabled"))
+
+  (set! :jump 'rust-mode :definition #'racer-find-definition))
 
 
 (def-package! company-racer