diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
index 4fa853fae7..2557a7667f 100644
--- a/contrib/emacs/git.el
+++ b/contrib/emacs/git.el
@@ -232,10 +232,8 @@ and returns the process output as a string, or nil if the git failed."
 
 (defun git-run-command-region (buffer start end env &rest args)
   "Run a git command with specified buffer region as input."
-  (unless (eq 0 (if env
-                    (git-run-process-region
-                     buffer start end "env"
-                     (append (git-get-env-strings env) (list "git") args))
+  (unless (eq 0 (let ((process-environment (append (git-get-env-strings env)
+                                                   process-environment)))
                   (git-run-process-region
                    buffer start end "git" args)))
     (error "Failed to run \"git %s\":\n%s" (mapconcat (lambda (x) x) args " ") (buffer-string))))
@@ -250,9 +248,8 @@ and returns the process output as a string, or nil if the git failed."
             (erase-buffer)
             (cd dir)
             (setq status
-                  (if env
-                      (apply #'call-process "env" nil (list buffer t) nil
-                             (append (git-get-env-strings env) (list hook-name) args))
+                  (let ((process-environment (append (git-get-env-strings env)
+                                                     process-environment)))
                     (apply #'call-process hook-name nil (list buffer t) nil args))))
           (display-message-or-buffer buffer)
           (eq 0 status)))))