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-rw-r--r--guix/scripts/challenge.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/guix/scripts/challenge.scm b/guix/scripts/challenge.scm
index d0a456ac1d..cc9cbe6f27 100644
--- a/guix/scripts/challenge.scm
+++ b/guix/scripts/challenge.scm
@@ -28,6 +28,7 @@
#:use-module ((guix progress) #:hide (dump-port*))
#:use-module (guix serialization)
#:use-module (guix scripts substitute)
+ #:use-module (guix narinfo)
#:use-module (rnrs bytevectors)
#:autoload (guix http-client) (http-fetch)
#:use-module ((guix build syscalls) #:select (terminal-columns))