diff --git a/src/gallium/docs/source/exts/formatting.py b/src/gallium/docs/source/_exts/formatting.py
similarity index 100%
rename from src/gallium/docs/source/exts/formatting.py
rename to src/gallium/docs/source/_exts/formatting.py
diff --git a/src/gallium/docs/source/conf.py b/src/gallium/docs/source/conf.py
index 972dcce6eb3..51cefc1c89b 100644
--- a/src/gallium/docs/source/conf.py
+++ b/src/gallium/docs/source/conf.py
@@ -16,7 +16,7 @@ import sys, os
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.append(os.path.abspath('exts'))
+sys.path.append(os.path.abspath('_exts'))
 
 # -- General configuration -----------------------------------------------------