diff --git a/plugins/zeo/zeo_monitor_ b/plugins/zeo/zeo_monitor_
index 60691989..4af76406 100755
--- a/plugins/zeo/zeo_monitor_
+++ b/plugins/zeo/zeo_monitor_
@@ -64,7 +64,11 @@
 #%# capabilities=autoconf suggest
 
 use strict;
-use Munin::Plugin;
+
+# Need to use eval EXPR here. "-T" is used on the command line, and
+# munin is not installable in a reasonable way for automated testing.
+eval 'use Munin::Plugin; 1;' or die 'Please install Munin::Plugin';
+
 use File::Basename;
 use IO::Socket::UNIX qw(SOCK_STREAM);