diff --git a/openbsc/src/libbsc/abis_nm.c b/openbsc/src/libbsc/abis_nm.c
index 0e7fc8d..788dd4d 100644
--- a/openbsc/src/libbsc/abis_nm.c
+++ b/openbsc/src/libbsc/abis_nm.c
@@ -685,6 +685,8 @@
 	struct gsm_nm_state *nm_state, new_state;
 	struct nm_statechg_signal_data nsd;
 
+	memset(&nsd, 0, sizeof(nsd));
+
 	nsd.obj = objclass2obj(bts, obj_class, obj_inst);
 	if (!nsd.obj)
 		return -EINVAL;