diff --git a/core/src/main/java/hudson/slaves/OfflineCause.java b/core/src/main/java/hudson/slaves/OfflineCause.java
index 804767dc592107c15e3e27d20b9dce2b3604313a..27b31d78a1e157166b9c50bd5b85c5c7ba125fd9 100644
--- a/core/src/main/java/hudson/slaves/OfflineCause.java
+++ b/core/src/main/java/hudson/slaves/OfflineCause.java
@@ -24,6 +24,7 @@
 
 package hudson.slaves;
 
+import hudson.Functions;
 import hudson.model.Computer;
 import org.jvnet.localizer.Localizable;
 import org.kohsuke.stapler.export.ExportedBean;
@@ -79,6 +80,10 @@ public abstract class OfflineCause {
         public String getShortDescription() {
             return cause.toString();
         }
+
+        @Override public String toString() {
+            return Messages.OfflineCause_connection_was_broken_(Functions.printThrowable(cause));
+        }
     }
 
     /**
diff --git a/core/src/main/resources/hudson/slaves/Messages.properties b/core/src/main/resources/hudson/slaves/Messages.properties
index 4844ae54a8eccff964e310c5657f1d59a4b079f7..84bd43bafbf5746a74cba4bb61a7b4dd862c4a25 100644
--- a/core/src/main/resources/hudson/slaves/Messages.properties
+++ b/core/src/main/resources/hudson/slaves/Messages.properties
@@ -33,6 +33,7 @@ DumbSlave.displayName=Dumb Slave
 NodeProvisioner.EmptyString=
 OfflineCause.DisconnectedFromCLI=Disconnected from CLI
 OfflineCause.LaunchFailed=This node is offline because Jenkins failed to launch the slave agent on it.
+OfflineCause.connection_was_broken_=Connection was broken: {0}
 SimpleScheduledRetentionStrategy.FinishedUpTime=Computer has finished its scheduled uptime
 SimpleScheduledRetentionStrategy.displayName=Take this slave on-line according to a schedule
 EnvironmentVariablesNodeProperty.displayName=Environment variables