diff --git a/core/src/main/java/hudson/node_monitors/SwapSpaceMonitor.java b/core/src/main/java/hudson/node_monitors/SwapSpaceMonitor.java
index 29d86667e4cbcf01abb461c3b40ee4fc40b33504..1fe298b4f3dd876152982cf397b6d14c9fe1d843 100644
--- a/core/src/main/java/hudson/node_monitors/SwapSpaceMonitor.java
+++ b/core/src/main/java/hudson/node_monitors/SwapSpaceMonitor.java
@@ -30,6 +30,7 @@ import hudson.model.Computer;
 import jenkins.model.Jenkins;
 import jenkins.security.MasterToSlaveCallable;
 import net.sf.json.JSONObject;
+import org.jenkinsci.Symbol;
 import org.jvnet.hudson.MemoryMonitor;
 import org.jvnet.hudson.MemoryUsage;
 import org.kohsuke.stapler.StaplerRequest;
@@ -86,7 +87,7 @@ public class SwapSpaceMonitor extends NodeMonitor {
      */
     public static /*almost final*/ AbstractNodeMonitorDescriptor<MemoryUsage> DESCRIPTOR;
 
-    @Extension
+    @Extension @Symbol("swapSpace")
     public static class DescriptorImpl extends AbstractAsyncNodeMonitorDescriptor<MemoryUsage> {
         public DescriptorImpl() {
             DESCRIPTOR = this;
diff --git a/core/src/main/java/jenkins/management/SystemLogLink.java b/core/src/main/java/jenkins/management/SystemLogLink.java
index 88c832d2e233b20fbcc92ab148e382e9a60da3eb..1ee08aca008033733607d5b891f3da1112e87a30 100644
--- a/core/src/main/java/jenkins/management/SystemLogLink.java
+++ b/core/src/main/java/jenkins/management/SystemLogLink.java
@@ -26,11 +26,12 @@ package jenkins.management;
 
 import hudson.Extension;
 import hudson.model.ManagementLink;
+import org.jenkinsci.Symbol;
 
 /**
  * @author <a href="mailto:nicolas.deloof@gmail.com">Nicolas De Loof</a>
  */
-@Extension(ordinal = Integer.MAX_VALUE - 600)
+@Extension(ordinal = Integer.MAX_VALUE - 600) @Symbol("log")
 public class SystemLogLink extends ManagementLink {
 
     @Override
diff --git a/core/src/main/java/jenkins/slaves/systemInfo/SystemPropertySlaveInfo.java b/core/src/main/java/jenkins/slaves/systemInfo/SystemPropertySlaveInfo.java
index fe30064f241c20169e8d6eb771740ef3ac7767d4..553f69d8695a307bfe468cc1ad43ecb2b94a5638 100644
--- a/core/src/main/java/jenkins/slaves/systemInfo/SystemPropertySlaveInfo.java
+++ b/core/src/main/java/jenkins/slaves/systemInfo/SystemPropertySlaveInfo.java
@@ -1,11 +1,12 @@
 package jenkins.slaves.systemInfo;
 
 import hudson.Extension;
+import org.jenkinsci.Symbol;
 
 /**
  * @author Kohsuke Kawaguchi
  */
-@Extension(ordinal=3)
+@Extension(ordinal=3) @Symbol("systemProperties")
 public class SystemPropertySlaveInfo extends SlaveSystemInfo {
     @Override
     public String getDisplayName() {