diff --git a/pkgs/tools/graphics/graphviz/default.nix b/pkgs/tools/graphics/graphviz/default.nix
index 02f9534876b6..4edec43e243c 100644
--- a/pkgs/tools/graphics/graphviz/default.nix
+++ b/pkgs/tools/graphics/graphviz/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = "http://www.graphviz.org/";
-    description = "open source graph visualization software"
+    description = "Open source graph visualization software";
 
     longDescription = ''
       Graphviz is open source graph visualization software. Graph