diff --git a/membuffer/membuffer.h b/membuffer/membuffer.h
index 5e9850a..bc8f737 100644
--- a/membuffer/membuffer.h
+++ b/membuffer/membuffer.h
@@ -45,7 +45,7 @@ namespace PT
 /*
 
 
-
+	stack_size and heap_block_size have to be *greater* than zero
 */
 template<typename item_type, size_t stack_size, size_t heap_block_size>
 class MemBuffer