diff --git a/code-of-conduct.md b/code-of-conduct.md
index 83ed3d4d1..5dc766847 100644
--- a/code-of-conduct.md
+++ b/code-of-conduct.md
@@ -38,7 +38,7 @@ No insults, harassment (sexual or otherwise), condescension, ad hominem, threats
 
 Condescension means treating others as inferior. Subtle condescension still violates the Code of Conduct even if not blatantly demeaning.
 
-No stereotyping of or promoting prejudice or discrimination against particular groups or classes/castes of people, including sexism, racism, homophobia, transphobia, age discrimination or discrimination based upon nationality.
+No stereotyping of or promoting prejudice or discrimination against particular groups or classes/castes of people, including sexism, racism, homophobia, transphobia, denying people their right to join or create a trade union, age discrimination or discrimination based upon nationality.
 
 In cases where criticism of ideology or culture remains on-topic, respectfully discuss the ideas.