diff --git a/pkgs/applications/graphics/openboard/default.nix b/pkgs/applications/graphics/openboard/default.nix
index b0d59d4a7f55..3178c50c933d 100644
--- a/pkgs/applications/graphics/openboard/default.nix
+++ b/pkgs/applications/graphics/openboard/default.nix
@@ -23,7 +23,7 @@ let
       install -Dm755 OpenBoardImporter $out/bin/OpenBoardImporter
     '';
   };
-in stdenv.mkDerivation rec {
+in stdenv.mkDerivation {
   pname = "openboard";
   version = "unstable-2022-11-28";
 
@@ -36,9 +36,9 @@ in stdenv.mkDerivation rec {
 
   postPatch = ''
     substituteInPlace OpenBoard.pro \
-      --replace '/usr/include/quazip5' '${quazip}/include/QuaZip-Qt5-${quazip.version}/quazip' \
+      --replace '/usr/include/quazip5' '${lib.getDev quazip}/include/QuaZip-Qt5-${quazip.version}/quazip' \
       --replace '-lquazip5' '-lquazip1-qt5' \
-      --replace '/usr/include/poppler' '${poppler.dev}/include/poppler'
+      --replace '/usr/include/poppler' '${lib.getDev poppler}/include/poppler'
   '';
 
   nativeBuildInputs = [ qmake copyDesktopItems wrapQtAppsHook ];