diff --git a/pkgs/kde/gear/k3b/default.nix b/pkgs/kde/gear/k3b/default.nix
index 9eba27da8639..ba4a1fc6aab4 100644
--- a/pkgs/kde/gear/k3b/default.nix
+++ b/pkgs/kde/gear/k3b/default.nix
@@ -13,8 +13,10 @@
   libsamplerate,
   cdrdao,
   cdrtools,
+  cdparanoia,
   dvdplusrwtools,
   libburn,
+  libdvdcss,
   normalize,
   sox,
   transcode,
@@ -38,7 +40,7 @@ mkKdeDerivation {
   ];
 
   qtWrapperArgs = [
-    "--prefix PATH ':' ${lib.makeBinPath [
+    "--prefix PATH : ${lib.makeBinPath [
       cdrdao
       cdrtools
       dvdplusrwtools
@@ -49,6 +51,10 @@ mkKdeDerivation {
       vcdimager
       flac
     ]}"
+
+    # FIXME: this should really be done with patchelf --add-rpath, but it breaks the binary somehow
+    "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ cdparanoia libdvdcss ]}"
   ];
+
   meta.mainProgram = "k3b";
 }