diff --git a/libheif/plugins/encoder_x265.cc b/libheif/plugins/encoder_x265.cc
index cbc80fac98..20a737141b 100644
--- a/libheif/plugins/encoder_x265.cc
+++ b/libheif/plugins/encoder_x265.cc
@@ -299,6 +299,7 @@ static void x265_init_plugin()
 
 static void x265_cleanup_plugin()
 {
+  x265_cleanup();
 }