diff --git a/swift/ql/lib/codeql/swift/dataflow/ExternalFlow.qll b/swift/ql/lib/codeql/swift/dataflow/ExternalFlow.qll
index ab4743dadeb9..6917f8ea209b 100644
--- a/swift/ql/lib/codeql/swift/dataflow/ExternalFlow.qll
+++ b/swift/ql/lib/codeql/swift/dataflow/ExternalFlow.qll
@@ -99,6 +99,7 @@ private module Frameworks {
   private import codeql.swift.security.CleartextStorageDatabaseExtensions
   private import codeql.swift.security.PathInjectionExtensions
   private import codeql.swift.security.PredicateInjectionExtensions
+  private import codeql.swift.security.StringLengthConflationExtensions
 }
 
 /**