diff --git a/pkgs/development/libraries/p11-kit/default.nix b/pkgs/development/libraries/p11-kit/default.nix
index 46f520e41e4..31a7e7e9086 100644
--- a/pkgs/development/libraries/p11-kit/default.nix
+++ b/pkgs/development/libraries/p11-kit/default.nix
@@ -36,6 +36,13 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  # Tests run in fakeroot for non-root users
+  preCheck = ''
+    if [ "$(id -u)" != "0" ]; then
+      export FAKED_MODE=1
+    fi
+  '';
+
   doCheck = !stdenv.isDarwin;
 
   installFlags = [