diff --git a/pkgs/development/libraries/aspell/dictionaries.nix b/pkgs/development/libraries/aspell/dictionaries.nix
index 9b067d6e746..0f27705160f 100644
--- a/pkgs/development/libraries/aspell/dictionaries.nix
+++ b/pkgs/development/libraries/aspell/dictionaries.nix
@@ -100,6 +100,15 @@ in {
     };
   };
 
+  nb = buildDict {
+    shortName = "nb-0.50.1-0";
+    fullName = "Norwegian Bokmal";
+    src = fetchurl {
+      url = "mirror://gnu/aspell/dict/nb/aspell-nb-0.50.1-0.tar.bz2";
+      sha256 = "12i2bmgdnlkzfinb20j2a0j4a20q91a9j8qpq5vgabbvc65nwx77";
+    };
+  };
+
   nl = buildDict {
     shortName = "nl-0.50-2";
     fullName = "Dutch";
@@ -113,6 +122,15 @@ in {
     '';
   };
 
+  nn = buildDict {
+    shortName = "nn-0.50.1-0";
+    fullName = "Norwegian Nynorsk";
+    src = fetchurl {
+      url = "mirror://gnu/aspell/dict/nn/aspell-nn-0.50.1-1.tar.bz2";
+      sha256 = "0w2k5l5rbqpliripgqwiqixz5ghnjf7i9ggbrc4ly4vy1ia10rmc";
+    };
+  };
+
   pl = buildDict {
     shortName = "pl-6.0_20061121-0";
     fullName = "Polish";