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-rw-r--r--guix/utils.scm2
-rw-r--r--tests/utils.scm12
2 files changed, 13 insertions, 1 deletions
diff --git a/guix/utils.scm b/guix/utils.scm
index c68094cf49..ded31142aa 100644
--- a/guix/utils.scm
+++ b/guix/utils.scm
@@ -369,7 +369,7 @@ keywords not already present in ARGS."
     (match defaults
       ((kw value rest ...)
        (loop rest
-             (if (assoc-ref kw args)
+             (if (memq kw args)
                  args
                  (cons* kw value args))))
       (()
diff --git a/tests/utils.scm b/tests/utils.scm
index 6590ed91cf..960928c842 100644
--- a/tests/utils.scm
+++ b/tests/utils.scm
@@ -111,6 +111,18 @@
         (ensure-keyword-arguments '(#:foo 2) '(#:bar 3))
         (ensure-keyword-arguments '(#:foo 2) '(#:bar 3 #:foo 42))))
 
+(test-equal "default-keyword-arguments"
+  '((#:foo 2)
+    (#:foo 2)
+    (#:foo 2 #:bar 3)
+    (#:foo 2 #:bar 3)
+    (#:foo 2 #:bar 3))
+  (list (default-keyword-arguments '() '(#:foo 2))
+        (default-keyword-arguments '(#:foo 2) '(#:foo 4))
+        (default-keyword-arguments '() '(#:bar 3 #:foo 2))
+        (default-keyword-arguments '(#:bar 3) '(#:foo 2))
+        (default-keyword-arguments '(#:foo 2 #:bar 3) '(#:bar 6))))
+
 (test-assert "filtered-port, file"
   (let* ((file  (search-path %load-path "guix.scm"))
          (input (open-file file "r0b")))