diff --git a/doc/manual-src/en/Makefile.am b/doc/manual-src/en/Makefile.am
index 1ce9b04a..87eb83bd 100644
--- a/doc/manual-src/en/Makefile.am
+++ b/doc/manual-src/en/Makefile.am
@@ -141,5 +141,3 @@ doctest:
 	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
-
-clean-local: docclean
diff --git a/doc/manual-src/pt/Makefile.am b/doc/manual-src/pt/Makefile.am
index cc6590cf..3051fec2 100644
--- a/doc/manual-src/pt/Makefile.am
+++ b/doc/manual-src/pt/Makefile.am
@@ -137,5 +137,3 @@ doctest:
 	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
-
-clean-local: docclean
diff --git a/doc/manual-src/ru/Makefile.am b/doc/manual-src/ru/Makefile.am
index 643c75a6..6b823e08 100644
--- a/doc/manual-src/ru/Makefile.am
+++ b/doc/manual-src/ru/Makefile.am
@@ -137,5 +137,3 @@ doctest:
 	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
-
-clean-local: docclean