diff --git a/chapters/statemachines.tex b/chapters/statemachines.tex
index b19709c00..c4bc4aeaf 100644
--- a/chapters/statemachines.tex
+++ b/chapters/statemachines.tex
@@ -358,6 +358,8 @@ \subsection{Reset Handling}\label{reset-handling}
 
 \subsection{Activation handling}\label{activation-handling}
 
+When a state is suspended its equations should not be executed, and its variables keep their value -- including state-variables in clocked discretized continuous-time equations.
+
 The execution of a sub-state machine has to be suspended when its
 enclosing state is not active. This activation flag is given as a
 \lstinline!Boolean! input \lstinline!active!. When this flag is true, the sub-state machine