diff --git a/doc/generic/pgf/CHANGELOG.md b/doc/generic/pgf/CHANGELOG.md
index 2f7734158..0d01bdead 100644
--- a/doc/generic/pgf/CHANGELOG.md
+++ b/doc/generic/pgf/CHANGELOG.md
@@ -17,6 +17,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Changed
 
 - Adapt `pgfmanual-test.tex`'s graphics path setting for flattened doc tree #1191
+- "Plot data file now found" is promoted from waning to error.
 
 ### Contributors