diff --git a/src/common.h b/src/common.h
index 192e087d..41dc192f 100644
--- a/src/common.h
+++ b/src/common.h
@@ -6,7 +6,7 @@
 #define IRSSI_GLOBAL_CONFIG "irssi.conf" /* config file name in /etc/ */
 #define IRSSI_HOME_CONFIG "config" /* config file name in ~/.irssi/ */
 
-#define IRSSI_ABI_VERSION 20
+#define IRSSI_ABI_VERSION 21
 
 #define DEFAULT_SERVER_ADD_PORT 6667
 #define DEFAULT_SERVER_ADD_TLS_PORT 6697
diff --git a/src/perl/textui/TextBufferView.xs b/src/perl/textui/TextBufferView.xs
index dc577f02..c0dc762d 100644
--- a/src/perl/textui/TextBufferView.xs
+++ b/src/perl/textui/TextBufferView.xs
@@ -58,6 +58,11 @@ void
 textbuffer_view_remove_all_lines(view)
 	Irssi::TextUI::TextBufferView view
 
+void
+textbuffer_view_remove_lines_by_level(view, level)
+        Irssi::TextUI::TextBufferView view
+        int level
+
 void
 textbuffer_view_set_bookmark(view, name, line)
 	Irssi::TextUI::TextBufferView view