diff --git a/packaging/debian/libwsutil0.symbols b/packaging/debian/libwsutil0.symbols
index 2cb75b417f..89205727c6 100644
--- a/packaging/debian/libwsutil0.symbols
+++ b/packaging/debian/libwsutil0.symbols
@@ -335,6 +335,7 @@ libwsutil.so.0 libwsutil0 #MINVER#
  wmem_strndup@Base 3.5.0
  wmem_strong_hash@Base 3.5.0
  wmem_strsplit@Base 3.5.0
+ wmem_tree_contains32@Base 4.1.0
  wmem_tree_count@Base 3.5.0
  wmem_tree_destroy@Base 3.5.0
  wmem_tree_foreach@Base 3.5.0