diff --git a/maven-plugins/maven-projecthelp-plugin/src/main/java/org/apache/maven/plugins/projecthelp/DescribeMojo.java b/maven-plugins/maven-projecthelp-plugin/src/main/java/org/apache/maven/plugins/projecthelp/DescribeMojo.java
index be099a040a..7532b8773e 100644
--- a/maven-plugins/maven-projecthelp-plugin/src/main/java/org/apache/maven/plugins/projecthelp/DescribeMojo.java
+++ b/maven-plugins/maven-projecthelp-plugin/src/main/java/org/apache/maven/plugins/projecthelp/DescribeMojo.java
@@ -131,15 +131,15 @@ public class DescribeMojo
 
         if ( pluginPrefix != null )
         {
-//            try
-//            {
+            try
+            {
                 descriptor = pluginManager.getPluginDescriptorForPrefix( pluginPrefix );
-//            }
-//            catch ( PluginManagerException e )
-//            {
-//                throw new MojoExecutionException( "Error retrieving plugin descriptor for prefix: \'" + pluginPrefix
-//                    + "\'.", e );
-//            }
+            }
+            catch ( PluginManagerException e )
+            {
+                throw new MojoExecutionException( "Error retrieving plugin descriptor for prefix: \'" + pluginPrefix
+                    + "\'.", e );
+            }
         }
         else if ( groupId != null && artifactId != null )
         {