diff --git a/README.md b/README.md
index a226391c..b05ba7b3 100644
--- a/README.md
+++ b/README.md
@@ -309,7 +309,7 @@ Works with any mix of file types:
 | Type | Extensions | Extraction |
 |------|-----------|------------|
 | Code | `.py .ts .js .jsx .tsx .mjs .go .rs .java .c .cpp .rb .cs .kt .scala .php .swift .lua .zig .ps1 .ex .exs .m .mm .jl .vue .svelte` | AST via tree-sitter + call-graph (cross-file for all languages) + docstring/comment rationale |
-| Docs | `.md .txt .rst` | Concepts + relationships + design rationale via Claude |
+| Docs | `.md .mdx .txt .rst` | Concepts + relationships + design rationale via Claude |
 | Office | `.docx .xlsx` | Converted to markdown then extracted via Claude (requires `pip install graphifyy[office]`) |
 | Papers | `.pdf` | Citation mining + concept extraction |
 | Images | `.png .jpg .webp .gif` | Claude vision - screenshots, diagrams, any language |