diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1f456165d23..6811c2a13d8 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15973,7 +15973,7 @@ with pkgs;
 
   mcomix = callPackage ../applications/graphics/mcomix { };
 
-  mendeley = libsForQt56.callPackage ../applications/office/mendeley {
+  mendeley = libsForQt5.callPackage ../applications/office/mendeley {
     gconf = pkgs.gnome2.GConf;
   };