diff --git a/sphinx/cmd/make_mode.py b/sphinx/cmd/make_mode.py
index aff2ea7f5..1961d37d5 100644
--- a/sphinx/cmd/make_mode.py
+++ b/sphinx/cmd/make_mode.py
@@ -51,6 +51,7 @@ BUILDERS = [
     ("",      "doctest",     "to run all doctests embedded in the documentation "
                              "(if enabled)"),
     ("",      "coverage",    "to run coverage check of the documentation (if enabled)"),
+    ("",      "clean",       "to remove everything in the build directory"),
 ]
 
 
diff --git a/sphinx/templates/quickstart/Makefile_t b/sphinx/templates/quickstart/Makefile_t
index 7b656dff0..be1f44151 100644
--- a/sphinx/templates/quickstart/Makefile_t
+++ b/sphinx/templates/quickstart/Makefile_t
@@ -46,6 +46,7 @@ help:
 	@echo "  doctest     to run all doctests embedded in the documentation (if enabled)"
 	@echo "  coverage    to run coverage check of the documentation (if enabled)"
 	@echo "  dummy       to check syntax errors of document sources"
+	@echo "  clean       to remove everything in the build directory"
 
 .PHONY: clean
 clean:
@@ -94,4 +95,3 @@ gettext:
 .PHONY: Makefile
 %: Makefile
 	$(SPHINXBUILD) -b "$@" $(ALLSPHINXOPTS) "$(BUILDDIR)/$@"
-
diff --git a/sphinx/templates/quickstart/make.bat_t b/sphinx/templates/quickstart/make.bat_t
index 830cf656e..9ac1fef4f 100644
--- a/sphinx/templates/quickstart/make.bat_t
+++ b/sphinx/templates/quickstart/make.bat_t
@@ -43,6 +43,7 @@ if "%1" == "help" (
 	echo.  doctest    to run all doctests embedded in the documentation if enabled
 	echo.  coverage   to run coverage check of the documentation if enabled
 	echo.  dummy      to check syntax errors of document sources
+	echo.  clean      to remove everything in the build directory
 	goto end
 )
 
@@ -106,4 +107,3 @@ goto end
 
 :end
 popd
-