diff --git a/packages/python/plotly/plotly/express/__init__.py b/packages/python/plotly/plotly/express/__init__.py
index 6a956e64a54..21848cb4283 100644
--- a/packages/python/plotly/plotly/express/__init__.py
+++ b/packages/python/plotly/plotly/express/__init__.py
@@ -52,6 +52,7 @@
     "density_contour",
     "density_heatmap",
     "line",
+    "line_3d",
     "line_polar",
     "line_ternary",
     "line_mapbox",