diff --git a/pkgs/development/libraries/libvirt/default.nix b/pkgs/development/libraries/libvirt/default.nix
index 63f11daad288..4b104a04c15d 100644
--- a/pkgs/development/libraries/libvirt/default.nix
+++ b/pkgs/development/libraries/libvirt/default.nix
@@ -60,7 +60,9 @@ in stdenv.mkDerivation rec {
       --replace 'lxc_path,' '"/run/libvirt/nix-emulators/libvirt_lxc",'
 
     patchShebangs . # fixes /usr/bin/python references
-  '';
+    substituteInPlace src/util/virjsoncompat.c --replace \
+        '"libjansson.so.4"' '"${jansson}/lib/libjansson${stdenv.targetPlatform.extensions.sharedLibrary}"'
+   '';
 
   configureFlags = [
     "--localstatedir=/var"