diff --git a/gnu/machine/ssh.scm b/gnu/machine/ssh.scm
index 35b42add48..5020bd362f 100644
--- a/gnu/machine/ssh.scm
+++ b/gnu/machine/ssh.scm
@@ -480,6 +480,8 @@ an environment type of 'managed-host."
                                  (raise roll-back-failure)))
                        (entries -> (map boot-parameters->menu-entry
                                         (list (second boot-parameters))))
+                       (locale -> (boot-parameters-locale
+                                   (second boot-parameters)))
                        (old-entries -> (map boot-parameters->menu-entry
                                             (drop boot-parameters 2)))
                        (bootloader -> (operating-system-bootloader
@@ -489,6 +491,7 @@ an environment type of 'managed-host."
                                    (bootloader-configuration-bootloader
                                     bootloader))
                                   bootloader entries
+                                  #:locale locale
                                   #:old-entries old-entries)))
                        (remote-result (machine-remote-eval machine remote-exp)))
     (when (eqv? 'error remote-result)
diff --git a/gnu/system.scm b/gnu/system.scm
index e8fe41cc24..a3122eaa65 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -1242,6 +1242,7 @@ a list of <menu-entry>, to populate the \"old entries\" menu."
   (let* ((file-systems    (operating-system-file-systems os))
          (root-fs         (operating-system-root-file-system os))
          (root-device     (file-system-device root-fs))
+         (locale          (operating-system-locale os))
          (params          (operating-system-boot-parameters
                            os root-device
                            #:system-kernel-arguments? #t))
@@ -1254,6 +1255,7 @@ a list of <menu-entry>, to populate the \"old entries\" menu."
 
     (generate-config-file bootloader-conf (list entry)
                           #:old-entries old-entries
+                          #:locale locale
                           #:store-directory-prefix
 			  (btrfs-store-subvolume-file-name file-systems))))
 
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 939559e719..9ed5c26483 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -384,6 +384,7 @@ STORE is an open connection to the store."
          ;; Make the specified system generation the default entry.
          (params (first (profile-boot-parameters %system-profile
                                                  (list number))))
+         (locale (boot-parameters-locale params))
          (old-generations
           (delv number (reverse (generation-numbers %system-profile))))
          (old-params (profile-boot-parameters
@@ -396,6 +397,7 @@ STORE is an open connection to the store."
           ((bootcfg (lower-object
                      ((bootloader-configuration-file-generator bootloader)
                       bootloader-config entries
+                      #:locale locale
                       #:old-entries old-entries)))
            (drvs -> (list bootcfg)))
         (mbegin %store-monad