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-rw-r--r--guix/scripts/graph.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 1d5db3b3cb..489931d5bb 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -43,6 +43,7 @@
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-37)
+ #:use-module (ice-9 format)
#:use-module (ice-9 match)
#:export (%package-node-type
%reverse-package-node-type