diff --git a/src/main/java/io/cryostat/discovery/DiscoveryPlugin.java b/src/main/java/io/cryostat/discovery/DiscoveryPlugin.java
index de331b827..cd6c2a630 100644
--- a/src/main/java/io/cryostat/discovery/DiscoveryPlugin.java
+++ b/src/main/java/io/cryostat/discovery/DiscoveryPlugin.java
@@ -110,6 +110,9 @@ public void prePersist(DiscoveryPlugin plugin) {
                 plugin.callback = UriBuilder.fromUri(plugin.callback).userInfo(null).build();
             }
             try {
+                logger.debugv(
+                        "Testing discovery plugin callback: {0} @ {1}",
+                        plugin.realm.name, plugin.callback);
                 PluginCallback.create(plugin).ping();
                 logger.debugv(
                         "Registered discovery plugin: {0} @ {1}",