diff --git a/pkgs/applications/misc/pdfstudio/default.nix b/pkgs/applications/misc/pdfstudio/default.nix
index 18e8136eb7b4..c91f6f64cf74 100644
--- a/pkgs/applications/misc/pdfstudio/default.nix
+++ b/pkgs/applications/misc/pdfstudio/default.nix
@@ -4,6 +4,10 @@
 , callPackage
 }:
 
+let makeurl = { pname, year, version }: "https://download.qoppa.com/${pname}/v${year}/${
+    builtins.replaceStrings [ "pdfstudio" "viewer" "." ] [ "PDFStudio" "Viewer" "_" ] "${pname}_v${version}"
+  }_linux64.deb";
+in
 {
   pdfstudio = callPackage ./common.nix rec {
     pname = program;
@@ -17,9 +21,7 @@
       libgccjit #for libstdc++.so.6 and libgomp.so.1
     ];
     src = fetchurl {
-      url = "https://download.qoppa.com/${pname}/v${year}/PDFStudio_v${
-        builtins.replaceStrings [ "." ] [ "_" ] version
-        }_linux64.deb";
+      url = makeurl { inherit pname year version; };
       sha256 = "1188ll2qz58rr2slavqxisbz4q3fdzidpasb1p33926z0ym3rk45";
     };
   };
@@ -33,9 +35,7 @@
       PDF Studio Viewer is an easy to use, full-featured PDF editing software. This is the free edition. For the standard/pro edition, see the package pdfstudio.
     '';
     src = fetchurl {
-      url = "https://download.qoppa.com/${pname}/v${year}/PDFStudioViewer_v${
-          builtins.replaceStrings [ "." ] [ "_" ] version
-        }_linux64.deb";
+      url = makeurl { inherit pname year version; };
       sha256 = "128k3fm8m8zdykx4s30g5m2zl7cgmvs4qinf1w525zh84v56agz6";
     };
   };