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-rw-r--r--gnu/services/audio.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm
index 345d8225b2..37f2efa479 100644
--- a/gnu/services/audio.scm
+++ b/gnu/services/audio.scm
@@ -24,6 +24,7 @@
   #:use-module (gnu packages mpd)
   #:use-module (guix records)
   #:use-module (ice-9 match)
+  #:use-module (ice-9 format)
   #:export (mpd-output
             mpd-output?
             mpd-configuration