diff --git a/warnings b/warnings
index b0c3fc4c..a64208d6 100644
--- a/warnings
+++ b/warnings
@@ -6,3 +6,8 @@ command -v nping >/dev/null 2>&1 || { echo >&2 "WARNING: nping isn't installed!
 command -v aptitude >/dev/null 2>&1 || { echo >&2 "WARNING: aptitude isn't installed! You should install it, because it's used as apt-get"; }
 command -v gpg2 >/dev/null 2>&1 || { echo >&2 "WARNING: gnupg2 isn't installed! You should install it, because it's used as gpg."; }
 command -v lynx >/dev/null 2>&1 || { echo >&2 "WARNING: lynx isn't installed! You should install it, because it's used by many functions."; }
+
+if [ ! -f /usr/share/doc/popularity-contest/copyright ]
+then
+    echo "You might want to install popularity-contest. See http://popcon.debian.org/"
+fi