diff --git a/src/parser_xml.c b/src/parser_xml.c
index 944d3d5..a0cf1f5 100644
--- a/src/parser_xml.c
+++ b/src/parser_xml.c
@@ -40,6 +40,13 @@
 #include "validation.h"
 #include "xml.h"
 
+#define LYDXML_LOG_NAMESPACE_ERR(XMLCTX, PREFIX, PREFIX_LEN) \
+        if (PREFIX_LEN) { \
+            LOGVAL(XMLCTX->ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)PREFIX_LEN, PREFIX); \
+        } else { \
+            LOGVAL(XMLCTX->ctx, LYVE_REFERENCE, "Missing XML namespace."); \
+        }
+
 static LY_ERR lydxml_subtree_r(struct lyd_xml_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p,
         struct ly_set *parsed);
 
@@ -123,8 +130,7 @@
         /* get namespace of the attribute to find its annotation definition */
         ns = lyxml_ns_get(&xmlctx->ns, xmlctx->prefix, xmlctx->prefix_len);
         if (!ns) {
-            /* unknown namespace, XML error */
-            LOGVAL(xmlctx->ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)xmlctx->prefix_len, xmlctx->prefix);
+            LYDXML_LOG_NAMESPACE_ERR(xmlctx, xmlctx->prefix, xmlctx->prefix_len);
             ret = LY_ENOTFOUND;
             goto cleanup;
         }
@@ -215,7 +221,7 @@
         if (prefix_len) {
             ns = lyxml_ns_get(&xmlctx->ns, prefix, prefix_len);
             if (!ns) {
-                LOGVAL(xmlctx->ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)prefix_len, prefix);
+                LYDXML_LOG_NAMESPACE_ERR(xmlctx, prefix, prefix_len);
                 ret = LY_EVALID;
                 goto cleanup;
             }
@@ -537,12 +543,7 @@
         if (lydctx->int_opts & LYD_INTOPT_ANY) {
             goto unknown_module;
         }
-
-        if (prefix_len) {
-            LOGVAL(ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)prefix_len, prefix);
-        } else {
-            LOGVAL(ctx, LYVE_REFERENCE, "Missing XML namespace.");
-        }
+        LYDXML_LOG_NAMESPACE_ERR(xmlctx, prefix, prefix_len);
         return LY_EVALID;
     }
 
@@ -1177,7 +1178,7 @@
     prefix_len = xmlctx->prefix_len;
     ns = lyxml_ns_get(&xmlctx->ns, prefix, prefix_len);
     if (!ns) {
-        LOGVAL(xmlctx->ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)prefix_len, prefix);
+        LYDXML_LOG_NAMESPACE_ERR(xmlctx, prefix, prefix_len);
         return LY_EVALID;
     } else if (strcmp(ns->uri, uri)) {
         /* different namespace */
@@ -1401,7 +1402,7 @@
     prefix_len = xmlctx->prefix_len;
     ns = lyxml_ns_get(&xmlctx->ns, prefix, prefix_len);
     if (!ns) {
-        LOGVAL(xmlctx->ctx, LYVE_REFERENCE, "Unknown XML prefix \"%.*s\".", (int)prefix_len, prefix);
+        LYDXML_LOG_NAMESPACE_ERR(xmlctx, prefix, prefix_len);
         return LY_EVALID;
     }