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-rw-r--r--guix/build/syscalls.scm3
1 files changed, 1 insertions, 2 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 624941253a..9c082b4352 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -870,8 +870,7 @@ system to PUT-OLD."
                     (proc (string->pointer name))))
         (if (null-pointer? ptr)
             (throw 'system-error "opendir*"
-                   "opendir*: ~A"
-                   (list (strerror err))
+                   "~A: ~A" (list name (strerror err))
                    (list err))
             ptr)))))