diff --git a/patches/wined3d-CSMT_Main/9999-IfDefined.patch b/patches/wined3d-CSMT_Main/9999-IfDefined.patch
index bb8ecb22..4d3ac2a0 100644
--- a/patches/wined3d-CSMT_Main/9999-IfDefined.patch
+++ b/patches/wined3d-CSMT_Main/9999-IfDefined.patch
@@ -1,6 +1,13 @@
 From: Wine Staging Team <webmaster@fds-team.de>
 Subject: Autogenerated #ifdef patch for wined3d-CSMT_Main.
 
+Based on patches by:
+    Henri Verbeet <hverbeet@codeweavers.com>
+    Matteo Bruni <mbruni@codeweavers.com>
+    Sebastian Lackner <sebastian@fds-team.de>
+    Stefan Dösinger <stefan@codeweavers.com>
+    Stefan Dösinger <stefandoesinger@gmx.at>
+
 diff --git a/dlls/d3d9/tests/visual.c b/dlls/d3d9/tests/visual.c
 --- a/dlls/d3d9/tests/visual.c
 +++ b/dlls/d3d9/tests/visual.c
diff --git a/staging/patchupdate.py b/staging/patchupdate.py
index c7cbaecf..4a7e6aa8 100755
--- a/staging/patchupdate.py
+++ b/staging/patchupdate.py
@@ -481,6 +481,10 @@ def generate_ifdefined(all_patches, skip_checks=False):
             fp.write("From: %s <%s>\n" % (headers['author'], headers['email']))
             fp.write("Subject: %s\n" % headers['subject'])
             fp.write("\n")
+            fp.write("Based on patches by:\n")
+            for author, email in sorted(set([(p.patch_author, p.patch_email) for p in patch.patches])):
+                fp.write("    %s <%s>\n" % (author, email))
+            fp.write("\n")
 
             depends = resolve_dependencies(enabled_patches, i)
             for f in sorted(patch.modified_files):