diff --git a/scripts/mbedtls_dev/macro_collector.py b/scripts/mbedtls_dev/macro_collector.py
index b1a9365..21c08ed 100644
--- a/scripts/mbedtls_dev/macro_collector.py
+++ b/scripts/mbedtls_dev/macro_collector.py
@@ -185,7 +185,7 @@
                 for value in argument_lists[i][1:]:
                     arguments[i] = value
                     yield self._format_arguments(name, arguments)
-                arguments[i] = argument_lists[0][0]
+                arguments[i] = argument_lists[i][0]
         except BaseException as e:
             raise Exception('distribute_arguments({})'.format(name)) from e