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-rw-r--r--emacs/guix-main.scm9
1 files changed, 5 insertions, 4 deletions
diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm
index 34da6ac6b6..86cedfd459 100644
--- a/emacs/guix-main.scm
+++ b/emacs/guix-main.scm
@@ -954,10 +954,11 @@ GENERATIONS is a list of generation numbers."
(define (package-location-string id-or-name)
"Return a location string of a package with ID-OR-NAME."
- (and-let* ((package (or (package-by-id id-or-name)
- (first (packages-by-name id-or-name))))
- (location (package-location package)))
- (location->string location)))
+ (and=> (or (package-by-id id-or-name)
+ (match (packages-by-name id-or-name)
+ (() #f)
+ ((package _ ...) package)))
+ (compose location->string package-location)))
(define (package-source-derivation->store-path derivation)
"Return a store path of the package source DERIVATION."