diff --git a/guix/licenses.scm b/guix/licenses.scm
index 7a1e2415e6..c6945288fe 100644
--- a/guix/licenses.scm
+++ b/guix/licenses.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012, 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
@@ -38,7 +38,7 @@ (define-module (guix licenses)
             cc0
             cc-by2.0 cc-by3.0 cc-by-sa2.0 cc-by-sa3.0 cc-by-sa4.0
             cddl1.0
-            cecill-c
+            cecill cecill-b cecill-c
             artistic2.0 clarified-artistic
             copyleft-next
             cpl1.0
@@ -193,7 +193,17 @@ (define cddl1.0
            "http://directory.fsf.org/wiki/License:CDDLv1.0"
            "https://www.gnu.org/licenses/license-list#CDDL"))
 
-(define cecill-c
+(define cecill                                    ;copyleft
+  (license "CeCILL"
+           "http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.html"
+           "https://www.gnu.org/licenses/license-list.html#CeCILL"))
+
+(define cecill-b                                  ;non-copyleft
+  (license "CeCILL-B"
+           "http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html"
+           "https://www.gnu.org/licenses/license-list.html#CeCILL"))
+
+(define cecill-c                                  ;weak copyleft
   (license "CeCILL-C"
            "http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.html"
            "https://www.gnu.org/licenses/license-list.html#CeCILL"))