diff --git a/.github/config/out_of_tree_extensions.cmake b/.github/config/out_of_tree_extensions.cmake
index 84c61390917b..1bd20e88d761 100644
--- a/.github/config/out_of_tree_extensions.cmake
+++ b/.github/config/out_of_tree_extensions.cmake
@@ -16,6 +16,11 @@
 #  VCPKG_TARGET_TRIPLET=arm64-osx
 
 ################# HTTPFS
+# Warning: the patching mechanism on windows doesn't work for httpfs somehow.
+# To patch httpfs:
+#  - add patch file, enable APPLY_PATCHES
+#  - disable windows build of httpfs by wrapping in `if (NOT WIN32)`
+#  - IMPORTANT: add a comment that tells people to restore the windows build when removing the patches
 duckdb_extension_load(httpfs
     LOAD_TESTS
     GIT_URL https://github.com/duckdb/duckdb-httpfs