diff --git a/lib/dns/include/dns/rdata.h b/lib/dns/include/dns/rdata.h
index ddbaad713b..36f79c8edd 100644
--- a/lib/dns/include/dns/rdata.h
+++ b/lib/dns/include/dns/rdata.h
@@ -117,7 +117,10 @@ struct dns_rdata {
 	ISC_LINK(dns_rdata_t) link;
 };
 
-#define DNS_RDATA_INIT { NULL, 0, 0, 0, 0, { (void *)(-1), (void *)(-1) } }
+#define DNS_RDATA_INIT                                           \
+	{                                                        \
+		NULL, 0, 0, 0, 0, { (void *)(-1), (void *)(-1) } \
+	}
 
 #define DNS_RDATA_CHECKINITIALIZED
 #ifdef DNS_RDATA_CHECKINITIALIZED
diff --git a/lib/isc/include/isc/net.h b/lib/isc/include/isc/net.h
index e7d0d565bf..eda799c60d 100644
--- a/lib/isc/include/isc/net.h
+++ b/lib/isc/include/isc/net.h
@@ -78,8 +78,10 @@
 #ifndef IN6ADDR_LOOPBACK_INIT
 #ifdef s6_addr
 /*% IPv6 address loopback init */
-#define IN6ADDR_LOOPBACK_INIT \
-	{ { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } } }
+#define IN6ADDR_LOOPBACK_INIT                                          \
+	{                                                              \
+		{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } } \
+	}
 #else /* ifdef s6_addr */
 #define IN6ADDR_LOOPBACK_INIT \
 	{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } }
@@ -89,8 +91,10 @@
 #ifndef IN6ADDR_V4MAPPED_INIT
 #ifdef s6_addr
 /*% IPv6 v4mapped prefix init */
-#define IN6ADDR_V4MAPPED_INIT \
-	{ { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0 } } }
+#define IN6ADDR_V4MAPPED_INIT                                                \
+	{                                                                    \
+		{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0 } } \
+	}
 #else /* ifdef s6_addr */
 #define IN6ADDR_V4MAPPED_INIT \
 	{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0 } }