diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 8eb6d9b7d3..ef225479ca 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -7879,7 +7879,7 @@ (define-public tlpui
                     (("\"tlp-stat\"")
                      (string-append "'" tlp-stat "'"))
                     (("/usr/share/tlp/defaults.conf")
-                     (string-append "'" defaults.conf "'")))
+                     defaults.conf))
                   (substitute* "ui_config_objects/gtkusblist.py"
                     (("\"lsusb\"")
                      (string-append "'" lsusb "'")))