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-rw-r--r--guix/build/utils.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 7257b30dfd..cda4fb12ef 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -25,6 +25,7 @@
   #:use-module (ice-9 match)
   #:use-module (ice-9 regex)
   #:use-module (ice-9 rdelim)
+  #:use-module (ice-9 format)
   #:use-module (rnrs bytevectors)
   #:use-module (rnrs io ports)
   #:re-export (alist-cons