diff --git a/tools/paraview-meshio-plugin.py b/tools/paraview-meshio-plugin.py
index 9f9feb14e..a4f2813f8 100644
--- a/tools/paraview-meshio-plugin.py
+++ b/tools/paraview-meshio-plugin.py
@@ -15,7 +15,7 @@
 vtk_to_meshio_type = meshio._vtk_common.vtk_to_meshio_type
 meshio_to_vtk_type = meshio._vtk_common.meshio_to_vtk_type
 meshio_input_filetypes = list(meshio._helpers.reader_map.keys())
-meshio_extensions = [ext[1:] for ext in meshio.extension_to_filetype.keys()]
+meshio_extensions = [ext[1:] for ext in meshio.extension_to_filetypes.keys()]
 meshio_input_filetypes = ["automatic"] + meshio_input_filetypes