diff --git a/Makefile b/Makefile
index 8bfd4e674a452b..c2edfe59a4595a 100644
--- a/Makefile
+++ b/Makefile
@@ -1044,7 +1044,7 @@ lint-md-build: tools/remark-cli/node_modules \
 .PHONY: lint-md
 ifneq ("","$(wildcard tools/remark-cli/node_modules/)")
 
-LINT_MD_DOC_FILES = $(shell ls doc/**/*.md)
+LINT_MD_DOC_FILES = $(shell ls doc/*.md doc/**/*.md)
 run-lint-doc-md = tools/remark-cli/cli.js -q -f $(LINT_MD_DOC_FILES)
 # Lint all changed markdown files under doc/
 tools/.docmdlintstamp: $(LINT_MD_DOC_FILES)