diff --git a/radio.scm b/radio.scm
index ec03723..740ea20 100644
--- a/radio.scm
+++ b/radio.scm
@@ -394,7 +394,7 @@
 
                           #|Guile|#
                           ("GUILE_WARN_DEPRECATED" . "detailed")
-                          ("GUILE_HISTORY"   . "$XDG_CACHE_HOME/guile/history")
+                          ("GUILE_HISTORY" . "$XDG_CACHE_HOME/guile/history")
                           ("GUILE_LOAD_PATH"
                            . ,(format #f "~a~@{:~a/share/guile/site/3.0~}"
                                          "$HOME/areas/code/scm/radix/modules"