diff --git a/pkgs/applications/misc/merkaartor/default.nix b/pkgs/applications/misc/merkaartor/default.nix
index 70a6efb90ddc..0833464f2c25 100644
--- a/pkgs/applications/misc/merkaartor/default.nix
+++ b/pkgs/applications/misc/merkaartor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, qmake, pkgconfig, boost, gdal, proj
+{ stdenv, fetchFromGitHub, makeWrapper, qmake, pkgconfig, boost, gdal, proj
 , qtbase, qtsvg, qtwebkit }:
 
 stdenv.mkDerivation rec {
@@ -12,12 +12,17 @@ stdenv.mkDerivation rec {
     sha256 = "0ls3q8m1hxiwyrypy6qca8wczhl4969ncl0sszfdwfv70rzxjk88";
   };
 
-  nativeBuildInputs = [ qmake pkgconfig ];
+  nativeBuildInputs = [ makeWrapper qmake pkgconfig ];
 
   buildInputs = [ boost gdal proj qtbase qtsvg qtwebkit ];
 
   enableParallelBuilding = true;
 
+  postInstall = ''
+    wrapProgram $out/bin/merkaartor \
+      --set QT_QPA_PLATFORM_PLUGIN_PATH ${qtbase.bin}/lib/qt-*/plugins/platforms
+  '';
+
   meta = with stdenv.lib; {
     description = "OpenStreetMap editor";
     homepage = http://merkaartor.be/;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6b5bac38d3de..0b890f34b7f3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19034,7 +19034,7 @@ in
 
   mercurialFull = appendToName "full" (pkgs.mercurial.override { guiSupport = true; });
 
-  merkaartor = libsForQt5.callPackage ../applications/misc/merkaartor { };
+  merkaartor = libsForQt59.callPackage ../applications/misc/merkaartor { };
 
   meshlab = libsForQt5.callPackage ../applications/graphics/meshlab { };