diff --git a/python/ql/src/experimental/Security/CWE-348/ClientSuppliedIpUsedInSecurityCheckLib.qll b/python/ql/src/experimental/Security/CWE-348/ClientSuppliedIpUsedInSecurityCheckLib.qll
index 21e602e5d34..918e39aef0b 100644
--- a/python/ql/src/experimental/Security/CWE-348/ClientSuppliedIpUsedInSecurityCheckLib.qll
+++ b/python/ql/src/experimental/Security/CWE-348/ClientSuppliedIpUsedInSecurityCheckLib.qll
@@ -2,6 +2,7 @@ private import python
 private import semmle.python.Concepts
 private import semmle.python.ApiGraphs
 private import semmle.python.dataflow.new.RemoteFlowSources
+private import semmle.python.dataflow.new.DataFlow
 
 /**
  * A data flow source of the client ip obtained according to the remote endpoint identifier specified