diff --git a/build_config/tests/test___init__.py b/build_config/tests/test___init__.py
new file mode 100644
index 00000000..f9a9724a
--- /dev/null
+++ b/build_config/tests/test___init__.py
@@ -0,0 +1,8 @@
+def test_draw_heatmap_package_imports():
+    """Regression test for misspelled submodule import in draw_heatmap.__init__."""
+    import accvlab.draw_heatmap
+
+    assert hasattr(accvlab.draw_heatmap, "draw_heatmap")
+    assert hasattr(accvlab.draw_heatmap, "draw_heatmap_batched")
+    assert "draw_heatmap" in accvlab.draw_heatmap.__all__
+    assert "draw_heatmap_batched" in accvlab.draw_heatmap.__all__
diff --git a/packages/draw_heatmap/accvlab/draw_heatmap/__init__.py b/packages/draw_heatmap/accvlab/draw_heatmap/__init__.py
index 422e8dfe..ab0c31f3 100644
--- a/packages/draw_heatmap/accvlab/draw_heatmap/__init__.py
+++ b/packages/draw_heatmap/accvlab/draw_heatmap/__init__.py
@@ -19,6 +19,6 @@
 except PackageNotFoundError:
     __version__ = "0.0.0"
 
-from .funtions import draw_heatmap, draw_heatmap_batched
+from .functions import draw_heatmap, draw_heatmap_batched
 
 __all__ = ["__version__", "draw_heatmap", "draw_heatmap_batched"]