diff --git a/private/git.rkt b/private/git.rkt
index 52760cf7..e241013e 100644
--- a/private/git.rkt
+++ b/private/git.rkt
@@ -68,6 +68,8 @@
 
 
 (define (git-commit! message)
-  (define escaped-message (string-replace message "\"" "\\\""))
-  (unless (system (format "git commit --all --quiet --message=\"~a\"" escaped-message))
-    (raise-arguments-error 'git-commit! "committing files to Git failed")))
+  (define escaped-message (string-replace message "'" "'\"'\"'"))
+  (unless (system (format "git commit --all --quiet --message='~a'" escaped-message))
+    (raise-arguments-error 'git-commit!
+                           "committing files to Git failed"
+                           "commit message" message)))