diff --git a/python/ql/lib/semmle/python/dataflow/new/internal/DataFlowPublic.qll b/python/ql/lib/semmle/python/dataflow/new/internal/DataFlowPublic.qll
index ffbcdac5d16..8c56e2d642c 100644
--- a/python/ql/lib/semmle/python/dataflow/new/internal/DataFlowPublic.qll
+++ b/python/ql/lib/semmle/python/dataflow/new/internal/DataFlowPublic.qll
@@ -327,7 +327,7 @@ abstract class ArgumentNode extends Node {
   final DataFlowSourceCall getCall() { this.argumentOf(result, _) }
 }
 
-/** A data flow node that represents a call argument. */
+/** A data flow node that represents a call argument found in the source code. */
 class ArgumentSourceNode extends ArgumentNode {
   ArgumentSourceNode() { this = any(DataFlowSourceCall c).getArg(_) }