diff --git a/guix/licenses.scm b/guix/licenses.scm
index 3a21f4f5cf..86929b1719 100644
--- a/guix/licenses.scm
+++ b/guix/licenses.scm
@@ -40,7 +40,7 @@
             ibmpl1.0
             imlib2
             lgpl2.0 lgpl2.0+ lgpl2.1 lgpl2.1+ lgpl3 lgpl3+
-            mpl2.0
+            mpl1.1 mpl2.0
             openldap2.8 openssl
             psfl public-domain
             qpl
@@ -239,6 +239,11 @@ which may be a file:// URI pointing the package's tree."
            "https://www.gnu.org/licenses/lgpl.html"
            "https://www.gnu.org/licenses/license-list#LGPLv3"))
 
+(define mpl1.1
+  (license "MPL 1.1"
+           "http://directory.fsf.org/wiki/License:MPLv1.1"
+           "https://www.gnu.org/licenses/license-list#MPL"))
+
 (define mpl2.0
   (license "MPL 2.0"
            "http://directory.fsf.org/wiki/License:MPLv2.0"