diff --git a/docs/conf.py b/docs/conf.py
index e6a1f11557..d43ff14a6f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -74,7 +74,8 @@
     'reno.sphinxext',
     'matplotlib.sphinxext.plot_directive',
     'sphinx.ext.intersphinx',
-    'nbsphinx'
+    'nbsphinx',
+    'qiskit_sphinx_theme'
 ]
 
 # -----------------------------------------------------------------------------