diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index adc94188f46..f057f4ad622 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -2411,6 +2411,7 @@ ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, bool full, bool silent)
 			}
 #if ZEND_MM_STAT
 			heap->size = 0;
+			heap->real_size = 0;
 #endif
 		}
 
@@ -2977,6 +2978,7 @@ static void *tracked_malloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC
 	tracked_add(heap, ptr, size);
 #if ZEND_MM_STAT
 	heap->size += size;
+	heap->real_size = heap->size;
 #endif
 	return ptr;
 }
@@ -2990,6 +2992,7 @@ static void tracked_free(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) {
 	zval *size_zv = tracked_get_size_zv(heap, ptr);
 #if ZEND_MM_STAT
 	heap->size -= Z_LVAL_P(size_zv);
+	heap->real_size = heap->size;
 #endif
 	zend_hash_del_bucket(heap->tracked_allocs, (Bucket *) size_zv);
 	free(ptr);
@@ -3017,6 +3020,7 @@ static void *tracked_realloc(void *ptr, size_t new_size ZEND_FILE_LINE_DC ZEND_F
 	tracked_add(heap, ptr, new_size);
 #if ZEND_MM_STAT
 	heap->size += new_size - old_size;
+	heap->real_size = heap->size;
 #endif
 	return ptr;
 }