diff --git a/swift/ql/lib/codeql/swift/frameworks/StandardLibrary/CustomUrlSchemes.qll b/swift/ql/lib/codeql/swift/frameworks/StandardLibrary/CustomUrlSchemes.qll
index f51a6494c87e..919771b7dfea 100644
--- a/swift/ql/lib/codeql/swift/frameworks/StandardLibrary/CustomUrlSchemes.qll
+++ b/swift/ql/lib/codeql/swift/frameworks/StandardLibrary/CustomUrlSchemes.qll
@@ -3,7 +3,11 @@ private import codeql.swift.dataflow.DataFlow
 private import codeql.swift.dataflow.ExternalFlow
 private import codeql.swift.dataflow.FlowSources
 
-private class UrlRemoteFlowSource extends SourceModelCsv {
+/**
+ * A model for custom URL remote flow sources. iOS apps can receive arbitrary
+ * URLs from other apps in these functions if they register a custom URL scheme.
+ */
+private class CustomUrlRemoteFlowSource extends SourceModelCsv {
   override predicate row(string row) {
     row =
       [