diff --git a/docs/Makefile b/docs/Makefile
index 15383bdd38..bbdd2bb4c8 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -170,7 +170,7 @@ spelling:
 
 black:
 	@mkdir -p $(BUILDDIR)/black
-	find -name "*.txt" -not -path "./_build/*" -not -path "./_theme/*" \
+	find . -name "*.txt" -not -path "./_build/*" -not -path "./_theme/*" \
 		| xargs blacken-docs --rst-literal-block; echo $$? > "$(BUILDDIR)/black/output.txt"
 	@echo
 	@echo "Code blocks reformatted"