diff --git a/mmgen/opts.py b/mmgen/opts.py
index 4bdaa288..59a712bd 100755
--- a/mmgen/opts.py
+++ b/mmgen/opts.py
@@ -267,6 +267,8 @@ def init(opts_data,add_opts=[],opt_filter=None,parse_only=False):
 
 	if g.regtest: g.testnet = True # These are equivalent for now
 
+	g.network = 'testnet' if g.testnet else 'mainnet'
+
 	from mmgen.protocol import init_genonly_altcoins,CoinProtocol
 	altcoin_trust_level = init_genonly_altcoins(opt.coin)
 
diff --git a/test/objattrtest.py b/test/objattrtest.py
index 19ed19cb..9bb836e7 100755
--- a/test/objattrtest.py
+++ b/test/objattrtest.py
@@ -147,10 +147,9 @@ def test_object(test_data,objname):
 
 def do_loop():
 	import importlib
-	network = ('mainnet','testnet')[bool(g.testnet)]
-	modname = 'test.objattrtest_py_d.oat_{}_{}'.format(g.coin.lower(),network)
+	modname = 'test.objattrtest_py_d.oat_{}_{}'.format(g.coin.lower(),g.network)
 	test_data = importlib.import_module(modname).tests
-	gmsg('Running immutable attribute tests for {} {}'.format(g.coin,network))
+	gmsg('Running immutable attribute tests for {} {}'.format(g.coin,g.network))
 
 	utests = cmd_args
 	for obj in test_data:
diff --git a/test/objtest.py b/test/objtest.py
index 9b3cfd1c..bc7300fa 100755
--- a/test/objtest.py
+++ b/test/objtest.py
@@ -116,10 +116,9 @@ def run_test(test,arg,input_data):
 
 def do_loop():
 	import importlib
-	network = ('mainnet','testnet')[bool(g.testnet)]
-	modname = 'test.objtest_py_d.ot_{}_{}'.format(g.coin.lower(),network)
+	modname = 'test.objtest_py_d.ot_{}_{}'.format(g.coin.lower(),g.network)
 	test_data = importlib.import_module(modname).tests
-	gmsg('Running data object tests for {} {}'.format(g.coin,network))
+	gmsg('Running data object tests for {} {}'.format(g.coin,g.network))
 
 	clr = None
 	utests = cmd_args