diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 8df690b6fda047f8ab000533b589da129c9b98de..30ca6a577018e72e82a69c387d65dad466dd92aa 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -1839,7 +1839,7 @@ remoteDomainGetSecurityLabel (virDomainPtr domain, virSecurityLabelPtr seclabel)
 
     if (ret.label.label_val != NULL) {
         if (strlen (ret.label.label_val) >= sizeof seclabel->label) {
-            remoteError(VIR_ERR_RPC, _("security label exceeds maximum: %zd"),
+            remoteError(VIR_ERR_RPC, _("security label exceeds maximum: %zu"),
                         sizeof seclabel->label - 1);
             goto cleanup;
         }
@@ -1910,7 +1910,7 @@ remoteNodeGetSecurityModel (virConnectPtr conn, virSecurityModelPtr secmodel)
 
     if (ret.model.model_val != NULL) {
         if (strlen (ret.model.model_val) >= sizeof secmodel->model) {
-            remoteError(VIR_ERR_RPC, _("security model exceeds maximum: %zd"),
+            remoteError(VIR_ERR_RPC, _("security model exceeds maximum: %zu"),
                         sizeof secmodel->model - 1);
             goto cleanup;
         }
@@ -1919,7 +1919,7 @@ remoteNodeGetSecurityModel (virConnectPtr conn, virSecurityModelPtr secmodel)
 
     if (ret.doi.doi_val != NULL) {
         if (strlen (ret.doi.doi_val) >= sizeof secmodel->doi) {
-            remoteError(VIR_ERR_RPC, _("security doi exceeds maximum: %zd"),
+            remoteError(VIR_ERR_RPC, _("security doi exceeds maximum: %zu"),
                         sizeof secmodel->doi - 1);
             goto cleanup;
         }
diff --git a/src/util/xml.c b/src/util/xml.c
index 1e0a48a64f299adeda29a3dfbac0da9ba6e2c840..79a9d2781e517cff7cf8a94a04885d5145288aa1 100644
--- a/src/util/xml.c
+++ b/src/util/xml.c
@@ -107,7 +107,7 @@ virXPathStringLimit(const char *xpath,
 
     if (tmp != NULL && strlen(tmp) >= maxlen) {
         virXMLError(VIR_ERR_INTERNAL_ERROR,
-                    _("\'%s\' value longer than %zd bytes"),
+                    _("\'%s\' value longer than %zu bytes"),
                     xpath, maxlen);
         VIR_FREE(tmp);
         return NULL;