diff --git a/Makefile b/Makefile
index 33c140766a2a0..4fa6381b51773 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,8 @@ inplace:
 
 test-code: in
 	$(NOSETESTS) -s -v sklearn
+test-sphinxext:
+	$(NOSETESTS) -s -v doc/sphinxext/
 test-doc:
 	$(NOSETESTS) -s -v doc/ doc/modules/ doc/datasets/ \
 	doc/developers doc/tutorial/basic doc/tutorial/statistical_inference \
@@ -31,7 +33,7 @@ test-coverage:
 	rm -rf coverage .coverage
 	$(NOSETESTS) -s -v --with-coverage sklearn
 
-test: test-code test-doc
+test: test-code test-sphinxext test-doc
 
 trailing-spaces:
 	find sklearn -name "*.py" -exec perl -pi -e 's/[ \t]*$$//' {} \;
diff --git a/continuous_integration/test_script.sh b/continuous_integration/test_script.sh
index faf106d63f629..23ea610ab5258 100644
--- a/continuous_integration/test_script.sh
+++ b/continuous_integration/test_script.sh
@@ -16,4 +16,4 @@ if [[ "$COVERAGE" == "true" ]]; then
 else
     make test-code
 fi
-make test-doc
+make test-doc test-sphinxext