diff --git a/pom.xml b/pom.xml
index e64887c7..1436190f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1394,9 +1394,14 @@
 									</goals>
 									<configuration>
 										<target>
-											<copy tofile="${project.build.directory}/generated-docs/reference/htmlsingle/index.html">
-												<fileset dir="${project.build.directory}/generated-docs/reference/htmlsingle" includes="${docs.main}.html" />
-											</copy>
+											<if>
+												<available file="${project.build.directory}/generated-docs/reference/htmlsingle" type="dir" />
+												<then>
+													<copy tofile="${project.build.directory}/generated-docs/reference/htmlsingle/index.html">
+														<fileset dir="${project.build.directory}/generated-docs/reference/htmlsingle" includes="${docs.main}.html" />
+													</copy>
+												</then>
+											</if>
 											<zip
 													destfile="${project.build.directory}/${project.artifactId}-${revision}.zip">
 												<!--<zipfileset