diff --git a/src/sciwrappers.c b/src/sciwrappers.c
index bde56ec4..627b184d 100644
--- a/src/sciwrappers.c
+++ b/src/sciwrappers.c
@@ -1253,12 +1253,6 @@ gint sci_get_position_after(ScintillaObject *sci, gint start)
 }
 
 
-void sci_lines_split(ScintillaObject *sci, gint pixelWidth)
-{
-	SSM(sci, SCI_LINESSPLIT, (uptr_t) pixelWidth, 0);
-}
-
-
 void sci_lines_join(ScintillaObject *sci)
 {
 	SSM(sci, SCI_LINESJOIN, 0, 0);
diff --git a/src/sciwrappers.h b/src/sciwrappers.h
index 26cb11f0..926d98c6 100644
--- a/src/sciwrappers.h
+++ b/src/sciwrappers.h
@@ -181,7 +181,6 @@ void				sci_cancel					(ScintillaObject *sci);
 
 gint				sci_get_position_after		(ScintillaObject *sci, gint start);
 
-void				sci_lines_split				(ScintillaObject *sci, gint pixelWidth);
 void				sci_lines_join				(ScintillaObject *sci);
 gint				sci_text_width				(ScintillaObject *sci, gint styleNumber, const gchar *text);