diff --git a/pkgs/development/python-modules/grammalecte/default.nix b/pkgs/development/python-modules/grammalecte/default.nix
index 8ad1dd628696..ac476f6bb6a2 100644
--- a/pkgs/development/python-modules/grammalecte/default.nix
+++ b/pkgs/development/python-modules/grammalecte/default.nix
@@ -7,16 +7,17 @@
 
 buildPythonPackage rec {
   pname = "grammalecte";
-  version = "0.5.17";
+  version = "0.5.17.2";
   name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "http://www.dicollecte.org/grammalecte/oxt/Grammalecte-fr-v${version}.zip";
-    sha256 = "0ccvj8p8bwvrj8bp370dzjs16pwm755a7364lvk8bp4505n7g0b6";
+    url = "http://www.dicollecte.org/grammalecte/zip/Grammalecte-fr-v${version}.zip";
+    sha256 = "1g5i978cdz14rfdi4z2ayb2c1rf8cq991slwsv0krhpvl9ripl9c";
   };
 
   propagatedBuildInputs = [ bottle ];
 
+  patches = [ ./spellchecker.patch ];
   preBuild = "cd ..";
   postInstall = ''
     mkdir $out/bin
@@ -34,4 +35,4 @@ buildPythonPackage rec {
     license = with lib.licenses; [ gpl3 ];
     maintainers = with lib.maintainers; [ apeyroux ];
   };
-}
\ No newline at end of file
+}
diff --git a/pkgs/development/python-modules/grammalecte/spellchecker.patch b/pkgs/development/python-modules/grammalecte/spellchecker.patch
new file mode 100644
index 000000000000..151eaa62f4a5
--- /dev/null
+++ b/pkgs/development/python-modules/grammalecte/spellchecker.patch
@@ -0,0 +1,13 @@
+diff --git a/spellchecker.py b/spellchecker.py
+index 37ac0ea..a60b3a9 100644
+--- a/spellchecker.py
++++ b/spellchecker.py
+@@ -2,7 +2,7 @@
+ # Wrapper for the IBDAWG class.
+ # Useful to check several dictionaries at once.
+ 
+-import ibdawg
++from grammalecte import ibdawg
+ 
+ 
+ dDictionaries = {