diff --git a/src/remsim_client.c b/src/remsim_client.c
index de926f7..88ac4cd 100644
--- a/src/remsim_client.c
+++ b/src/remsim_client.c
@@ -230,6 +230,7 @@
 
 	g_tall_ctx = talloc_named_const(NULL, 0, "global");
 	talloc_asn1_ctx = talloc_named_const(g_tall_ctx, 0, "asn1");
+	msgb_talloc_ctx_init(g_tall_ctx, 0);
 
 	osmo_init_logging2(g_tall_ctx, &log_info);
 
diff --git a/src/simtrace2-remsim_client.c b/src/simtrace2-remsim_client.c
index d30965a..9bedf71 100644
--- a/src/simtrace2-remsim_client.c
+++ b/src/simtrace2-remsim_client.c
@@ -818,6 +818,7 @@
 
 	g_tall_ctx = talloc_named_const(NULL, 0, "global");
 	talloc_asn1_ctx = talloc_named_const(g_tall_ctx, 0, "asn1");
+	msgb_talloc_ctx_init(g_tall_ctx, 0);
 	osmo_init_logging2(g_tall_ctx, &log_info);
 
 	rc = libusb_init(NULL);