diff --git a/master_changes.md b/master_changes.md
index eda5600ba3c..579bc6effdb 100644
--- a/master_changes.md
+++ b/master_changes.md
@@ -89,6 +89,8 @@ users)
 ## Shell
 
 ## Internal
+  * Add tracing for opam itself, enabled if TRACE_FILE is set in the
+    environment [#5757 @c-cube]
 
 ## Internal: Windows