diff --git a/mmgen_node_tools/main_blocks_info.py b/mmgen_node_tools/main_blocks_info.py
index c2bbf59..18136c4 100755
--- a/mmgen_node_tools/main_blocks_info.py
+++ b/mmgen_node_tools/main_blocks_info.py
@@ -164,7 +164,7 @@ async def main():
 
 	cls = JSONBlocksInfo if cfg.json else BlocksInfo
 
-	m = cls( cfg, cfg._args, await rpc_init(cfg,ignore_wallet=True) )
+	m = cls(cfg, cfg._args, await rpc_init(cfg, ignore_wallet=True))
 
 	if m.fnames and not cfg.no_header:
 		m.print_header()
@@ -178,4 +178,4 @@ async def main():
 
 	m.finalize_output()
 
-async_run(main())
+async_run(cfg, main)
diff --git a/mmgen_node_tools/main_halving_calculator.py b/mmgen_node_tools/main_halving_calculator.py
index 50916ab..8f0a3a3 100755
--- a/mmgen_node_tools/main_halving_calculator.py
+++ b/mmgen_node_tools/main_halving_calculator.py
@@ -67,7 +67,7 @@ async def main():
 	proto = cfg._proto
 
 	from mmgen.rpc import rpc_init
-	c = await rpc_init( cfg, proto, ignore_wallet=True )
+	c = await rpc_init(cfg, proto, ignore_wallet=True)
 
 	tip = await c.call('getblockcount')
 	assert tip > 1, 'block tip must be > 1'
@@ -181,4 +181,4 @@ async def main():
 	else:
 		print_current_stats()
 
-async_run(main())
+async_run(cfg, main)
diff --git a/test/modtest_d/__init__.py b/test/modtest_d/__init__.py
new file mode 100755
index 0000000..86190b5
--- /dev/null
+++ b/test/modtest_d/__init__.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+
+"""
+test.modtest_d: shared data for module tests for the MMGen Node Tools suite
+"""
+
+altcoin_tests = []