diff --git a/lib/licenses.nix b/lib/licenses.nix
index 1596c319bd0a..e3b551953fdd 100644
--- a/lib/licenses.nix
+++ b/lib/licenses.nix
@@ -255,6 +255,11 @@ lib.mapAttrs (n: v: v // { shortName = n; }) rec {
     fullName = "LaTeX Project Public License v1.2";
   };
 
+  lppl13c = spdx {
+    spdxId = "LPPL-1.3c";
+    fullName = "LaTeX Project Public License v1.3c";
+  };
+
   lpl-102 = spdx {
     spdxId = "LPL-1.02";
     fullName = "Lucent Public License v1.02";
diff --git a/pkgs/data/fonts/gyre/default.nix b/pkgs/data/fonts/gyre/default.nix
index 95f6ccd6820a..2fc94f8f355d 100644
--- a/pkgs/data/fonts/gyre/default.nix
+++ b/pkgs/data/fonts/gyre/default.nix
@@ -28,10 +28,9 @@ stdenv.mkDerivation rec {
 
     homepage = "http://www.gust.org.pl/projects/e-foundry/tex-gyre/index_html#Readings";
 
-    # GUST Font License: http://www.gust.org.pl/projects/e-foundry/licenses
-    license = "unknown";
+    license = stdenv.lib.licenses.lppl13c;
 
     platforms = stdenv.lib.platforms.all;
-    maintainers = [ "Daniel Bergey <bergey@teallabs.org>" ];
+    maintainers = with stdenv.lib.maintainers; [ bergey ];
   };
 }
diff --git a/pkgs/data/fonts/nafees/default.nix b/pkgs/data/fonts/nafees/default.nix
index aa0c1dbd77ba..bcbf57498106 100644
--- a/pkgs/data/fonts/nafees/default.nix
+++ b/pkgs/data/fonts/nafees/default.nix
@@ -54,6 +54,6 @@ stdenv.mkDerivation rec {
     license = "unknown";
 
     platforms = stdenv.lib.platforms.all;
-    maintainers = [ "Daniel Bergey <bergey@teallabs.org>" ];
+    maintainers = with stdenv.lib.maintainers; [ bergey ];
   };
 }