diff --git a/pkgs/development/libraries/kde-frameworks/baloo.nix b/pkgs/development/libraries/kde-frameworks/baloo.nix
index d608785027e8..73df056516e8 100644
--- a/pkgs/development/libraries/kde-frameworks/baloo.nix
+++ b/pkgs/development/libraries/kde-frameworks/baloo.nix
@@ -14,4 +14,12 @@ mkDerivation {
   ];
   outputs = [ "out" "dev" ];
   propagatedBuildInputs = [ kcoreaddons kfilemetadata qtbase ];
+
+  # kde-baloo.service uses `ExecCondition=@KDE_INSTALL_FULL_BINDIR@/kde-systemd-start-condition ...`
+  # which comes from the "plasma-workspace" derivation, but KDE_INSTALL_* all point at the "baloo" one
+  # (`${lib.getBin pkgs.plasma-workspace}` would cause infinite recursion)
+  postUnpack = ''
+    substituteInPlace "$sourceRoot"/src/file/kde-baloo.service.in \
+      --replace @KDE_INSTALL_FULL_BINDIR@ /run/current-system/sw/bin
+  '';
 }