diff --git a/annotation/src/main/java/lcsb/mapviewer/annotation/services/ChEMBLParser.java b/annotation/src/main/java/lcsb/mapviewer/annotation/services/ChEMBLParser.java
index 2029d14ff430ca6167b305fda54ff8b808130165..76aa0b70e6d139f4485a5259f95a6540eab744a4 100644
--- a/annotation/src/main/java/lcsb/mapviewer/annotation/services/ChEMBLParser.java
+++ b/annotation/src/main/java/lcsb/mapviewer/annotation/services/ChEMBLParser.java
@@ -215,6 +215,9 @@ public class ChEMBLParser extends DrugAnnotation implements IExternalService {
           } else if (node.getNodeName().equalsIgnoreCase("species_group_flag")) {
             // nothing to do here
             continue;
+          } else if (node.getNodeName().equalsIgnoreCase("cross_references")) {
+            // nothing to do here
+            continue;
           } else {
             logger.warn("Unknown node: " + node.getNodeName() + ";" + node.getTextContent());
           }