diff --git a/docs/source/api/index.rst b/docs/source/api/index.rst
index 9d7c3f66..6879b247 100755
--- a/docs/source/api/index.rst
+++ b/docs/source/api/index.rst
@@ -103,6 +103,7 @@ Signal processing
     DWT
     DWT2D
     DCT
+    DTCWT
     Seislet
     Radon2D
     Radon3D