diff -uNr a/heartbeat/gcp-vpc-move-route.in b/heartbeat/gcp-vpc-move-route.in
--- a/heartbeat/gcp-vpc-move-route.in	2018-07-30 16:56:23.486368292 +0200
+++ b/heartbeat/gcp-vpc-move-route.in	2018-07-30 17:11:54.189715666 +0200
@@ -125,8 +125,8 @@
 </parameter>
 
 <parameter name="stackdriver_logging" unique="0" required="0">
-<longdesc lang="en">If enabled (set to true), IP failover logs will be posted to stackdriver logging</longdesc>
-<shortdesc lang="en">Stackdriver-logging support</shortdesc>
+<longdesc lang="en">If enabled (set to true), IP failover logs will be posted to stackdriver logging. Using stackdriver logging requires additional libraries (google-cloud-logging).</longdesc>
+<shortdesc lang="en">Stackdriver-logging support. Requires additional libraries (google-cloud-logging).</shortdesc>
 <content type="boolean" default="" />
 </parameter>
 </parameters>
diff -uNr a/heartbeat/gcp-vpc-move-vip.in b/heartbeat/gcp-vpc-move-vip.in
--- a/heartbeat/gcp-vpc-move-vip.in	2018-07-30 16:56:23.486368292 +0200
+++ b/heartbeat/gcp-vpc-move-vip.in	2018-07-30 17:06:17.260686483 +0200
@@ -72,8 +72,8 @@
       <content type="string" default="" />
     </parameter>
     <parameter name="stackdriver_logging" unique="0" required="0">
-      <longdesc lang="en">If enabled (set to true), IP failover logs will be posted to stackdriver logging</longdesc>
-      <shortdesc lang="en">Stackdriver-logging support</shortdesc>
+      <longdesc lang="en">If enabled (set to true), IP failover logs will be posted to stackdriver logging. Using stackdriver logging requires additional libraries (google-cloud-logging).</longdesc>
+      <shortdesc lang="en">Stackdriver-logging support. Requires additional libraries (google-cloud-logging).</shortdesc>
       <content type="boolean" default="" />
     </parameter>
   </parameters>