diff -r b459361d98ad -r ccde46662db7 ui/gtk/button.c
--- a/ui/gtk/button.c	Wed Dec 17 18:31:20 2025 +0100
+++ b/ui/gtk/button.c	Thu Dec 18 17:50:15 2025 +0100
@@ -787,24 +787,24 @@
 static char* create_linkbutton_jsonvalue(const char *label, const char *uri, gboolean include_null, gboolean visited, gboolean set_visited) {
     CxJsonValue *obj = cxJsonCreateObj(NULL);
     if(label) {
-        cxJsonObjPutString(obj, CX_STR("label"), label);
+        cxJsonObjPutString(obj, cx_str("label"), label);
     } else if(include_null) {
-        cxJsonObjPutLiteral(obj, CX_STR("label"), CX_JSON_NULL);
+        cxJsonObjPutLiteral(obj, cx_str("label"), CX_JSON_NULL);
     }
     
     if(uri) {
-        cxJsonObjPutString(obj, CX_STR("uri"), uri);
+        cxJsonObjPutString(obj, cx_str("uri"), uri);
     } else if(include_null) {
-        cxJsonObjPutLiteral(obj, CX_STR("uri"), CX_JSON_NULL);
+        cxJsonObjPutLiteral(obj, cx_str("uri"), CX_JSON_NULL);
     }
     
     if(set_visited) {
-        cxJsonObjPutLiteral(obj, CX_STR("visited"), visited ? CX_JSON_TRUE : CX_JSON_FALSE);
+        cxJsonObjPutLiteral(obj, cx_str("visited"), visited ? CX_JSON_TRUE : CX_JSON_FALSE);
     }
     
     CxJsonWriter writer = cxJsonWriterCompact();
     CxBuffer buf;
-    cxBufferInit(&buf, NULL, 128, NULL, CX_BUFFER_AUTO_EXTEND);
+    cxBufferInit(&buf, NULL, NULL, 128, CX_BUFFER_AUTO_EXTEND);
     cxJsonWrite(&buf, obj, (cx_write_func)cxBufferWrite, &writer);
     cxJsonValueFree(obj);
     cxBufferTerminate(&buf);