diff --git a/doc/src/01010-architecture.md b/doc/src/01010-architecture.md
index 22fbc9cc..b859da0b 100644
--- a/doc/src/01010-architecture.md
+++ b/doc/src/01010-architecture.md
@@ -66,6 +66,8 @@ With the things from above, a module could have the following architecture:
 +-----------------------------------+---------+
 ```
 
+External dependencies are not listed in this graphic.
+
 The foundation of all imag modules is the store, as one can see in the
 visualization from above.
 Above the store library there is the libimagrt, which provides the basic runtime