diff --git a/doc/source/reference/routines.math.rst b/doc/source/reference/routines.math.rst
index a454841b3199..af6dc004b2ab 100644
--- a/doc/source/reference/routines.math.rst
+++ b/doc/source/reference/routines.math.rst
@@ -1,3 +1,5 @@
+.. module:: numpy
+
 Mathematical functions
 ======================