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-rw-r--r--guix/import/stackage.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/guix/import/stackage.scm b/guix/import/stackage.scm
index 00814c7d46..f801835b33 100644
--- a/guix/import/stackage.scm
+++ b/guix/import/stackage.scm
@@ -92,7 +92,7 @@
"Return the version of the package with upstream NAME included in PACKAGES."
(let ((pkg (find (lambda (pkg) (string=? (stackage-package-name pkg) name))
packages)))
- (stackage-package-version pkg)))
+ (and=> pkg stackage-package-version)))
;;;