diff --git a/rosenthal/packages/linux.scm b/rosenthal/packages/linux.scm
index 2eae000..16894b6 100644
--- a/rosenthal/packages/linux.scm
+++ b/rosenthal/packages/linux.scm
@@ -41,7 +41,7 @@
 (define config->string
   (@@ (gnu packages linux) config->string))
 
-(define %xanmod-version "6.1.10")
+(define %xanmod-version "6.1.11")
 (define %xanmod-revision "xanmod1")
 
 (define %hardened-version "6.1.10")
@@ -54,10 +54,8 @@
           "https://github.com/xanmod/linux/releases/download/"
           %xanmod-version "-" %xanmod-revision "/patch-"
           %xanmod-version "-" %xanmod-revision ".xz"))
-    (file-name
-     (string-append "linux-" %xanmod-version "-" %xanmod-revision ".patch"))
     (sha256
-     (base32 "0967cxpaa96m1xfqr3kl7ldb1kl5y09ck4165qqi0vlx26rvyc1f"))))
+     (base32 "0qb6cmf6pjp4k4yk1nbsd9klnynharhyma2lzpnk9imm6mx3dqap"))))
 
 (define linux-hardened-patch
   (origin
diff --git a/rosenthal/utils/download.scm b/rosenthal/utils/download.scm
index 283367e..10397e5 100644
--- a/rosenthal/utils/download.scm
+++ b/rosenthal/utils/download.scm
@@ -13,10 +13,13 @@
 (define url-fetch* (@@ (guix download) url-fetch*))
 
 (define* (url-fetch/xz-file url hash-algo hash
-                             #:optional name
-                             #:key (system (%current-system))
-                             (guile (default-guile)))
-  "Similar to 'url-fetch' but decompress the xz file at URL."
+                            #:optional name
+                            #:key (system (%current-system))
+                            (guile (default-guile)))
+  "Similar to 'url-fetch' but decompress the xz file at URL as the result.
+This is mainly used for adding xz-compressed patches to a origin definition.
+
+\".xz\" extension in the URL is assumed."
   (define file-name
     (match url
       ((head _ ...)
@@ -27,13 +30,13 @@
     (module-ref (resolve-interface '(gnu packages compression)) 'xz))
 
   (mlet %store-monad ((drv (url-fetch* url hash-algo hash
-                                       (or name file-name)
+                                       (or name (basename file-name ".xz"))
                                        #:system system
                                        #:guile guile))
                       (guile (package->derivation guile system)))
     ;; Take the xz file, and simply decompress it.
-    ;; Use ungrafted xz so that the resulting tarball doesn't depend on
-    ;; whether grafts are enabled.
+    ;; Use ungrafted xz so that the resulting file doesn't depend on whether
+    ;; grafts are enabled.
     (gexp->derivation (or name file-name)
                       (with-imported-modules '((guix build utils))
                         #~(begin