diff --git a/doc/source/api/api.txt b/doc/source/api/api.txt
index 84a2a5b1..b9a36ea6 100644
--- a/doc/source/api/api.txt
+++ b/doc/source/api/api.txt
@@ -9,5 +9,6 @@ API Reference
    scikits.image.filter
    scikits.image.graph
    scikits.image.io
+   scikits.image.morphology
    scikits.image.opencv
    scikits.image.transform