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-rw-r--r--guix/build/pack.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/guix/build/pack.scm b/guix/build/pack.scm
index fcb1da2a6c..1b28101469 100644
--- a/guix/build/pack.scm
+++ b/guix/build/pack.scm
@@ -72,7 +72,7 @@ the `-I' option."
(define (assert-utf8-locale)
"Verify the current process is using the en_US.utf8 locale."
- (unless (string=? "unset for tests" (getenv "GUIX_LOCPATH"))
+ (unless (string=? "unset for tests" (or (getenv "GUIX_LOCPATH") ""))
(unless (false-if-exception (setlocale LC_ALL "en_US.utf8"))
(error "environment not configured for en_US.utf8 locale"))))