diff --git a/pkgs/applications/graphics/tesseract/default.nix b/pkgs/applications/graphics/tesseract/default.nix
index d9e4d6c84f4..e67d202dcae 100644
--- a/pkgs/applications/graphics/tesseract/default.nix
+++ b/pkgs/applications/graphics/tesseract/default.nix
@@ -5,14 +5,6 @@ let
   version = "${majVersion}.02";
 
   f = lang : sha256 : let
-      src = fetchurl {
-        url = "http://tesseract-ocr.googlecode.com/files/${lang}.traineddata.gz";
-        inherit sha256;
-      };
-    in 
-      "gunzip -c ${src} > $out/share/tessdata/${lang}.traineddata";
-
-  f2 = lang : sha256 : let
       src = fetchurl {
         url = "http://tesseract-ocr.googlecode.com/files/tesseract-ocr-${majVersion}.${lang}.tar.gz";
         inherit sha256;
@@ -21,12 +13,12 @@ let
       "tar xfvz ${src} -C $out/share/ --strip=1";
 
   extraLanguages = ''
-    ${f2 "cat" "0d1smiv1b3k9ay2s05sl7q08mb3ln4w5iiiymv2cs8g8333z8jl9"}
-    ${f2 "rus" "059336mkhsj9m3hwfb818xjlxkcdpy7wfgr62qwz65cx914xl709"}
-    ${f2 "spa" "1c9iza5mbahd9pa7znnq8yv09v5kz3gbd2sarcgcgc1ps1jc437l"}
-    ${f2 "nld" "162acxp1yb6gyki2is3ay2msalmfcsnrlsd9wml2ja05k94m6bjy"}
-    ${f2 "eng" "1y5xf794n832s3lymzlsdm2s9nlrd2v27jjjp0fd9xp7c2ah4461"}
-    ${f2 "slv" "0rqng43435cly32idxm1lvxkcippvc3xpxbfizwq5j0155ym00dr"}
+    ${f "cat" "0d1smiv1b3k9ay2s05sl7q08mb3ln4w5iiiymv2cs8g8333z8jl9"}
+    ${f "rus" "059336mkhsj9m3hwfb818xjlxkcdpy7wfgr62qwz65cx914xl709"}
+    ${f "spa" "1c9iza5mbahd9pa7znnq8yv09v5kz3gbd2sarcgcgc1ps1jc437l"}
+    ${f "nld" "162acxp1yb6gyki2is3ay2msalmfcsnrlsd9wml2ja05k94m6bjy"}
+    ${f "eng" "1y5xf794n832s3lymzlsdm2s9nlrd2v27jjjp0fd9xp7c2ah4461"}
+    ${f "slv" "0rqng43435cly32idxm1lvxkcippvc3xpxbfizwq5j0155ym00dr"}
   '';
 in