diff --git a/pkgs/applications/graphics/paraview/default.nix b/pkgs/applications/graphics/paraview/default.nix
index 64072b83654..1a761de6ec0 100644
--- a/pkgs/applications/graphics/paraview/default.nix
+++ b/pkgs/applications/graphics/paraview/default.nix
@@ -7,21 +7,20 @@
 
 let
   version = "5.9.1";
-  major = "5.9";
 
   docFiles = [
     (fetchurl {
-      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${major}&type=data&os=Sources&downloadFile=ParaViewTutorial-${version}.pdf";
+      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${lib.versions.majorMinor version}&type=data&os=Sources&downloadFile=ParaViewTutorial-${version}.pdf";
       name = "Tutorial.pdf";
       sha256 = "1knpirjbz3rv8p8n03p39vv8vi5imvxakjsssqgly09g0cnsikkw";
     })
     (fetchurl {
-      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${major}&type=data&os=Sources&downloadFile=ParaViewGettingStarted-${version}.pdf";
+      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${lib.versions.majorMinor version}&type=data&os=Sources&downloadFile=ParaViewGettingStarted-${version}.pdf";
       name = "GettingStarted.pdf";
       sha256 = "14xhlvg7s7d5amqf4qfyamx2a6b66zf4cmlfm3s7iw3jq01x1lx6";
     })
     (fetchurl {
-      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${major}&type=data&os=Sources&downloadFile=ParaViewCatalystGuide-${version}.pdf";
+      url = "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${lib.versions.majorMinor version}&type=data&os=Sources&downloadFile=ParaViewCatalystGuide-${version}.pdf";
       name = "CatalystGuide.pdf";
       sha256 = "133vcfrbg2nh15igl51ns6gnfn1is20vq6j0rg37wha697pmcr4a";
     })
@@ -79,7 +78,8 @@ in mkDerivation rec {
   ];
 
   buildInputs = [
-    libGLU libGL
+    libGLU
+    libGL
     libXt
     mpi
     tbb
@@ -93,7 +93,7 @@ in mkDerivation rec {
     qtsvg
   ];
 
-  postInstall = let docDir = "$out/share/paraview-${major}/doc"; in
+  postInstall = let docDir = "$out/share/paraview-${lib.versions.majorMinor version}/doc"; in
     lib.optionalString withDocs ''
       mkdir -p ${docDir};
       for docFile in ${lib.concatStringsSep " " docFiles}; do
@@ -112,5 +112,4 @@ in mkDerivation rec {
     maintainers = with maintainers; [ guibert ];
     platforms = platforms.linux;
   };
-
 }