diff -r b459361d98ad -r ccde46662db7 ucx/buffer.c
--- a/ucx/buffer.c	Wed Dec 17 18:31:20 2025 +0100
+++ b/ucx/buffer.c	Thu Dec 18 17:50:15 2025 +0100
@@ -45,11 +45,11 @@
 
 int cxBufferInit(
         CxBuffer *buffer,
+        const CxAllocator *allocator,
         void *space,
         size_t capacity,
-        const CxAllocator *allocator,
         int flags
-) {
+        ) {
     if (allocator == NULL) {
         allocator = cxDefaultAllocator;
     }
@@ -82,17 +82,17 @@
 }
 
 CxBuffer *cxBufferCreate(
+        const CxAllocator *allocator,
         void *space,
         size_t capacity,
-        const CxAllocator *allocator,
         int flags
-) {
+        ) {
     if (allocator == NULL) {
         allocator = cxDefaultAllocator;
     }
     CxBuffer *buf = cxMalloc(allocator, sizeof(CxBuffer));
     if (buf == NULL) return NULL; // LCOV_EXCL_LINE
-    if (0 == cxBufferInit(buf, space, capacity, allocator, flags)) {
+    if (0 == cxBufferInit(buf, allocator, space, capacity, flags)) {
         return buf;
     } else {
         // LCOV_EXCL_START