1 files changed, 7 insertions, 0 deletions

diff --git a/src/marker.c b/src/marker.c
index 7d601eea70f..e68245db9ec 100644
--- a/src/marker.c
+++ b/src/marker.c
@@ -31,6 +31,13 @@ static int cached_charpos;
 static int cached_bytepos;
 static struct buffer *cached_buffer;
 static int cached_modiff;
+
+clear_charpos_cache (b)
+     struct buffer *b;
+{
+  if (cached_buffer == b)
+    cached_buffer = 0;
+}
 
 /* Converting between character positions and byte positions.  */