diff --git a/.classpath b/.classpath
index 3e07508..3288c25 100644
--- a/.classpath
+++ b/.classpath
@@ -16,6 +16,7 @@
 	<classpathentry including="**/*.java" kind="src" output="target/test-classes" path="src/test/resources"/>
 	<classpathentry kind="src" output="target/classes" path="target/generated-sources/localizer">
 		<attributes>
+			<attribute name="ignore_optional_problems" value="true"/>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
diff --git a/pom.xml b/pom.xml
index 6de23eb..50a0c79 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.jvnet.hudson.plugins</groupId>
     <artifactId>analysis-pom</artifactId>
-    <version>1.39</version>
+    <version>1.40</version>
     <relativePath>../analysis-pom/pom.xml</relativePath>
   </parent>
 
diff --git a/src/main/java/hudson/plugins/dry/DryReporterDescriptor.java b/src/main/java/hudson/plugins/dry/DryReporterDescriptor.java
index cbf6673..97b6922 100644
--- a/src/main/java/hudson/plugins/dry/DryReporterDescriptor.java
+++ b/src/main/java/hudson/plugins/dry/DryReporterDescriptor.java
@@ -12,7 +12,7 @@
  *
  * @author Ulli Hafner
  */
-@Extension(ordinal = 100) // NOCHECKSTYLE
+@Extension(ordinal = 100, optional = true) // NOCHECKSTYLE
 public class DryReporterDescriptor extends ReporterDescriptor {
     /** Validates the thresholds user input. */
     private static final ThresholdValidation THRESHOLD_VALIDATION = new ThresholdValidation();