diff --git a/plugins/min-vp/min-vp.pl b/plugins/min-vp/min-vp.pl
new file mode 100644
index 0000000..9c676b9
--- /dev/null
+++ b/plugins/min-vp/min-vp.pl
@@ -0,0 +1,11 @@
+# If the VP is set, make sure it's at least 900 (15 minutes).
+
+sub before_send {
+	my ($request, $response) = @_;
+	my $q = ${$request}{'qe'};
+	if ((defined($q->{'VP'})) && ($q->{'VP'} < 900)) {
+		$q->{'VP'} = 900;
+	}
+	return 0;
+}
+