diff --git a/solr/solr-ref-guide/build.gradle b/solr/solr-ref-guide/build.gradle
index 652aa378206..857164635d6 100644
--- a/solr/solr-ref-guide/build.gradle
+++ b/solr/solr-ref-guide/build.gradle
@@ -196,7 +196,7 @@ task setupLazyProps {
                 ["ivyversions./org.apache.opennlp/opennlp-tools", "org.apache.opennlp", "opennlp-tools"],
                 ["ivyversions.org.apache.tika.version", "org.apache.tika", "tika-core"],
                 ["ivyversions.org.apache.velocity.tools.version", "org.apache.velocity.tools", "velocity-tools-generic"],
-                ["ivyversions./org.apache.zookeeper/zookeeper", "org.apache.zookeeper", "zookeeper"],
+                ["ivyversions.org.apache.zookeeper.version", "org.apache.zookeeper", "zookeeper"],
 
                 ["ivy-zookeeper-version", "org.apache.zookeeper", "zookeeper"],
                 ["ivy-log4j-version", "org.apache.logging.log4j", "log4j-core"],