diff --git a/src/main/java/org/apache/maven/plugin/pmd/PmdReportListener.java b/src/main/java/org/apache/maven/plugin/pmd/PmdReportListener.java
index 43ccf9c..0674449 100644
--- a/src/main/java/org/apache/maven/plugin/pmd/PmdReportListener.java
+++ b/src/main/java/org/apache/maven/plugin/pmd/PmdReportListener.java
@@ -192,6 +192,11 @@
 
     private void processMetrics()
     {
+        if ( metrics.size() == 0 )
+        {
+            return;
+        }
+
         sink.section1();
         sink.sectionTitle1();
         sink.text( "Metrics" );