diff --git a/pkgs/tools/misc/tmpwatch/default.nix b/pkgs/tools/misc/tmpwatch/default.nix
index 760f56726fab..d79e480327c2 100644
--- a/pkgs/tools/misc/tmpwatch/default.nix
+++ b/pkgs/tools/misc/tmpwatch/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, psmisc }:
 
 stdenv.mkDerivation rec {
   name = "tmpwatch-2.11";
@@ -8,6 +8,8 @@ stdenv.mkDerivation rec {
     sha256 = "1m5859ngwx61l1i4s6fja2avf1hyv6w170by273w8nsin89825lk";
   };
 
+  configureFlags="--with-fuser=${psmisc}/bin/fuser";
+
   meta = with stdenv.lib; {
     homepage = https://fedorahosted.org/tmpwatch/;
     description = "Recursively searches through specified directories and removes files which have not been accessed in a specified period of time";