diff --git a/doc/api/mruby/range.h.md b/doc/api/mruby/range.h.md
deleted file mode 100644
index e69de29bb..000000000
diff --git a/doc/api/mruby/string.h.md b/doc/api/mruby/string.h.md
deleted file mode 100644
index e69de29bb..000000000