diff --git a/bin/import_map_layers.py b/bin/import_map_layers.py
index e55dd11..981bb5f 100755
--- a/bin/import_map_layers.py
+++ b/bin/import_map_layers.py
@@ -117,6 +117,9 @@ if __name__ == '__main__':
 
 				elif os.path.isdir(realprefix):
 
+					if not "globs" in layer:
+						layer["globs"] = [ "**/*.geojson" ]
+
 					for globspec in layer["globs"]:
 						for physical_filepath in pathlib.Path(realprefix).glob(globspec):
 							process(layer_name, layer, physical_filepath)