1 files changed, 3 insertions, 0 deletions

diff --git a/src/allocator.h b/src/allocator.h
index dd9bb16..2c0c5b9 100644
--- a/src/allocator.h
+++ b/src/allocator.h
@@ -3,6 +3,9 @@
 #include <stddef.h> /* size_t */
 
 struct allocator {
+#ifndef NDEBUG
+        struct allocator *self;
+#endif
         void *(*allocate)(struct allocator *allocator, size_t n);
         void (*deallocate)(struct allocator *allocator, void *ptr);
 };