diff --git a/system theoretic process analysis.md b/system theoretic process analysis.md
index 373cd51d8..209f17dea 100644
--- a/system theoretic process analysis.md	
+++ b/system theoretic process analysis.md	
@@ -7,6 +7,6 @@
 	- step one
 		- start with the [[losses]], which involve something of value to stakeholders
 		- continue by defining the scope of the system
-		- find [[hazards]], which are systemic states or conditions to be prevented.
+		- find [[hazards]], which are systemic states or conditions to be prevented, and which together with (worst-case) environmental conditions
 		- [[hazards]] + [[environmental conditions]] -> [[losses]]
 	- can be applied recursively
\ No newline at end of file