diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index 99455dc632..bd2c462b96 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -20,6 +20,7 @@
 ;;; Copyright © 2020 Hendur Saga <hendursaga@yahoo.com>
 ;;; Copyright © 2020 pukkamustard <pukkamustard@posteo.net>
 ;;; Copyright © 2021 Ellis Kenyő <me@elken.dev>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1314,9 +1315,10 @@ (define-public libolm
      `(#:phases
        (modify-phases %standard-phases
          (replace 'check
-           (lambda _
-             (with-directory-excursion "tests"
-               (invoke "ctest" ".")))))))
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               (with-directory-excursion "tests"
+                 (invoke "ctest" "."))))))))
     (synopsis "Implementation of the olm and megolm cryptographic ratchets")
     (description "The libolm library implements the Double Ratchet
 cryptographic ratchet.  It is written in C and C++11, and exposed as a C