diff --git a/tests/memtest/libmem.c b/tests/memtest/libmem.c
index 2fa0dea7..f05ea481 100644
--- a/tests/memtest/libmem.c
+++ b/tests/memtest/libmem.c
@@ -402,3 +402,13 @@ libmem_clear_flags(void* obj, int flags)
   self->flags &= ~flags;
   return 0;
 }
+
+/*****************************************************************************/
+int
+libmem_get_alloced_bytes(void* obj)
+{
+  struct mem_info* self;
+
+  self = (struct mem_info*)obj;
+  return self->total_bytes;
+}
diff --git a/tests/memtest/libmem.h b/tests/memtest/libmem.h
index 4bc4b1ec..cd000443 100644
--- a/tests/memtest/libmem.h
+++ b/tests/memtest/libmem.h
@@ -14,5 +14,7 @@ int
 libmem_set_flags(void* obj, int flags);
 int
 libmem_clear_flags(void* obj, int flags);
+int
+libmem_get_alloced_bytes(void* obj);
 
 #endif