diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index cbf4af069b..fba41ce3a4 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -4556,7 +4556,7 @@ int
 main(int argc, char *argv[])
 {
     struct unixctl_server *unixctl;
-    struct ovn_exit_args exit_args = {};
+    struct ovn_exit_args exit_args = {0};
     int retval;
 
     /* Read from system-id-override file once on startup. */
diff --git a/controller/pinctrl.c b/controller/pinctrl.c
index ff143b0340..9a852b94cd 100644
--- a/controller/pinctrl.c
+++ b/controller/pinctrl.c
@@ -1298,7 +1298,7 @@ fill_ipv6_prefix_state(struct ovsdb_idl_txn *ovnsb_idl_txn,
                 pfd->prefix = in6addr_any;
             }
         } else if (pfd->state == PREFIX_PENDING && ovnsb_idl_txn) {
-            char prefix_str[INET6_ADDRSTRLEN + 1] = {};
+            char prefix_str[INET6_ADDRSTRLEN + 1] = {0};
             if (!ipv6_string_mapped(prefix_str, &pfd->prefix)) {
                 goto out;
             }
@@ -3850,7 +3850,7 @@ packet_put_ra_dnssl_opt(struct dp_packet *b, ovs_be32 lifetime,
                         char *dnssl_data)
 {
     size_t prev_l4_size = dp_packet_l4_size(b);
-    char dnssl[255] = {};
+    char dnssl[255] = {0};
     int size;
 
     size = encode_ra_dnssl_opt(dnssl_data, dnssl, sizeof(dnssl));
diff --git a/lib/actions.c b/lib/actions.c
index c7a07db8e2..3527ad8c5a 100644
--- a/lib/actions.c
+++ b/lib/actions.c
@@ -3432,7 +3432,7 @@ encode_put_nd_ra_option(const struct ovnact_gen_option *o,
 
     case ND_OPT_DNSSL:
     {
-        char dnssl[255] = {};
+        char dnssl[255] = {0};
         int size;
 
         size = encode_ra_dnssl_opt(c->string, dnssl, sizeof(dnssl));
@@ -4931,7 +4931,7 @@ format_COMMIT_LB_AFF(const struct ovnact_commit_lb_aff *lb_aff, struct ds *s)
     bool ipv6 = !IN6_IS_ADDR_V4MAPPED(&lb_aff->vip);
 
     if (ipv6) {
-        char ip_str[INET6_ADDRSTRLEN] = {};
+        char ip_str[INET6_ADDRSTRLEN] = {0};
         inet_ntop(AF_INET6, &lb_aff->vip, ip_str, INET6_ADDRSTRLEN);
         ds_put_format(s, "commit_lb_aff(vip = \"[%s]", ip_str);
     } else {
@@ -4946,7 +4946,7 @@ format_COMMIT_LB_AFF(const struct ovnact_commit_lb_aff *lb_aff, struct ds *s)
     ds_put_cstr(s, "\"");
 
     if (ipv6) {
-        char ip_str[INET6_ADDRSTRLEN] = {};
+        char ip_str[INET6_ADDRSTRLEN] = {0};
         inet_ntop(AF_INET6, &lb_aff->backend, ip_str, INET6_ADDRSTRLEN);
         ds_put_format(s, ", backend = \"[%s]", ip_str);
     } else {
diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index a551d88cde..d52951dc16 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -764,7 +764,7 @@ main(int argc, char *argv[])
     int res = EXIT_SUCCESS;
     struct unixctl_server *unixctl;
     int retval;
-    struct ovn_exit_args exit_args = {};
+    struct ovn_exit_args exit_args = {0};
     int n_threads = 1;
     struct northd_state state = {
         .had_lock = false,