diff --git a/src/alloc-aligned.c b/src/alloc-aligned.c
index 937cbdb8..6b8bc762 100644
--- a/src/alloc-aligned.c
+++ b/src/alloc-aligned.c
@@ -193,9 +193,6 @@ static void* mi_heap_malloc_zero_aligned_at(mi_heap_t* const heap, const size_t
       const bool is_aligned = (((uintptr_t)page->free + offset) & align_mask)==0;
       if mi_likely(is_aligned)
       {
-        #if MI_STAT>1
-        mi_heap_stat_increase(heap, malloc_requested, size);
-        #endif
         void* p = (zero ? _mi_page_malloc_zeroed(heap,page,padsize) : _mi_page_malloc(heap,page,padsize)); // call specific page malloc for better codegen
         mi_assert_internal(p != NULL);
         mi_assert_internal(((uintptr_t)p + offset) % alignment == 0);
diff --git a/src/alloc.c b/src/alloc.c
index 487253db..f1e4e9eb 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -661,9 +661,10 @@ mi_decl_restrict void* _mi_heap_malloc_guarded(mi_heap_t* heap, size_t size, boo
   if (p != NULL) {
     if (!mi_heap_is_initialized(heap)) { heap = mi_prim_get_default_heap(); }
     #if MI_STAT>1
-    mi_heap_stat_increase(heap, malloc, mi_usable_size(p));
+    mi_heap_stat_decrease(heap, malloc_requested, req_size);
+    mi_heap_stat_increase(heap, malloc_requested, size);
     #endif
-    mi_heap_stat_counter_increase(heap, guarded_alloc_count, 1);
+    mi_heap_stat_counter_increase(heap, malloc_guarded_count, 1);
   }
   #if MI_DEBUG>3
   if (p != NULL && zero) {
diff --git a/src/stats.c b/src/stats.c
index 807714b4..b1bff00d 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -645,7 +645,7 @@ char* mi_stats_get_json(size_t output_size, char* output_buf) mi_attr_noexcept {
   for (size_t i = 0; i <= MI_BIN_HUGE; i++) {
     mi_heap_buf_print_count_bin(&hbuf, "    ", &stats->page_bins[i], i, i!=MI_BIN_HUGE);
   }
-  mi_heap_buf_print(&hbuf, "  ]\n");
+  mi_heap_buf_print(&hbuf, "  ],\n");
   mi_heap_buf_print(&hbuf, "  \"chunk_bins\": [\n");
   for (size_t i = 0; i < MI_CBIN_COUNT; i++) {
     mi_heap_buf_print_count_cbin(&hbuf, "    ", &stats->chunk_bins[i], (mi_chunkbin_t)i, i!=MI_CBIN_COUNT-1);