1 files changed, 1 insertions, 0 deletions

diff --git a/src/buffer.c b/src/buffer.c
index def9c1041dc..6b59badadb1 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -313,6 +313,7 @@ The value is never nil.")
   BUF_ZV (b) = 1;
   BUF_Z (b) = 1;
   BUF_MODIFF (b) = 1;
+  BUF_OVERLAY_MODIFF (b) = 1;
   BUF_SAVE_MODIFF (b) = 1;
   BUF_INTERVALS (b) = 0;