diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index b1e62b157f..0495d9315a 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -14,6 +14,7 @@ Fixes
 -----
 * Do not cache InetSocketAddress/SocketAddress in RedisURI #144
 * Cluster API does not implement the Geo commands interface #154 (thanks to @IdanFridman)
+* pfmerge invokes PFADD instead of PFMERGE (thanks to @christophstrobl) #158
 
 Other
 ------