diff --git a/cpp/ql/lib/change-notes/2025-05-16-wmain-support.md b/cpp/ql/lib/change-notes/2025-05-16-wmain-support.md
new file mode 100644
index 000000000000..bdc369bfeddc
--- /dev/null
+++ b/cpp/ql/lib/change-notes/2025-05-16-wmain-support.md
@@ -0,0 +1,4 @@
+---
+category: feature
+---
+* Added support for `wmain` as part of the ArgvSource model.
\ No newline at end of file
diff --git a/cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll b/cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll
index 2aef5e6e7df3..b5e94d4c0463 100644
--- a/cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll
+++ b/cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll
@@ -55,12 +55,12 @@ private class LocalModelSource extends LocalFlowSource {
 }
 
 /**
- * A local data flow source that the `argv` parameter to `main`.
+ * A local data flow source that the `argv` parameter to `main` or `wmain`.
  */
 private class ArgvSource extends LocalFlowSource {
   ArgvSource() {
     exists(Function main, Parameter argv |
-      main.hasGlobalName("main") and
+      main.hasGlobalName(["main", "wmain"]) and
       main.getParameter(1) = argv and
       this.asParameter(2) = argv
     )