diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 5c73751adb2d..53cd7b2bb580 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -535,7 +535,8 @@ iomap_write_failed(struct inode *inode, loff_t pos, unsigned len)
 	 * write started inside the existing inode size.
 	 */
 	if (pos + len > i_size)
-		truncate_pagecache_range(inode, max(pos, i_size), pos + len);
+		truncate_pagecache_range(inode, max(pos, i_size),
+					 pos + len - 1);
 }
 
 static int