diff --git a/src/libCom/logClient/logClient.c b/src/libCom/logClient/logClient.c
index 692ac3105..f7c9b9ca0 100644
--- a/src/libCom/logClient/logClient.c
+++ b/src/libCom/logClient/logClient.c
@@ -516,6 +516,9 @@ logClientId epicsShareAPI logClientCreate (
 void epicsShareAPI logClientShow (logClientId id, unsigned level)
 {
     logClient *pClient = (logClient *) id;
+    if ( ! pClient ) {
+        return;
+    }
 
     if ( pClient->connected ) {
         printf ("log client: connected to log server at \"%s\"\n", pClient->name);