diff --git a/lib/linker.version b/lib/linker.version
index 017d5a5e..7ab3459e 100644
--- a/lib/linker.version
+++ b/lib/linker.version
@@ -109,6 +109,7 @@ MOSQ_1.6 {
 		mosquitto_property_add_varint;
 		mosquitto_property_check_all;
 		mosquitto_property_check_command;
+		mosquitto_property_copy_all;
 		mosquitto_property_free_all;
 		mosquitto_property_read_binary;
 		mosquitto_property_read_byte;