diff --git a/python/ql/lib/semmle/python/frameworks/Lxml.qll b/python/ql/lib/semmle/python/frameworks/Lxml.qll
index fe229d66f3a..e0fc4715096 100644
--- a/python/ql/lib/semmle/python/frameworks/Lxml.qll
+++ b/python/ql/lib/semmle/python/frameworks/Lxml.qll
@@ -26,6 +26,8 @@ module Lxml {
   API::Node etreeRef() {
     result = API::moduleImport("lxml").getMember("etree")
     or
+    result = API::moduleImport("owslib").getMember("etree").getMember("etree")
+    or
     result = ModelOutput::getATypeNode("lxml.etree~Alias")
   }