diff --git a/src/core/platform/tests/test-common.c b/src/core/platform/tests/test-common.c
index b5bb1232f6..e7fc828ef9 100644
--- a/src/core/platform/tests/test-common.c
+++ b/src/core/platform/tests/test-common.c
@@ -1202,9 +1202,13 @@ nmtstp_ip4_address_add(NMPlatform *platform,
                     external_command,
                     TRUE,
                     ifindex,
-                    (NMIPAddr *) &address,
+                    &((NMIPAddr){
+                        .addr4 = address,
+                    }),
                     plen,
-                    (NMIPAddr *) &peer_address,
+                    &((NMIPAddr){
+                        .addr4 = peer_address,
+                    }),
                     lifetime,
                     preferred,
                     flags,