diff --git a/src/files.c b/src/files.c
index 9445b51a..4408c053 100644
--- a/src/files.c
+++ b/src/files.c
@@ -540,7 +540,7 @@ void replace_buffer(const char *filename)
 	cutbuffer = was_cutbuffer;
 
 	/* Insert the processed file into its place. */
-	read_file(f, descriptor, filename, FALSE);
+	read_file(f, descriptor, filename, TRUE);
 
 #ifndef NANO_TINY
 	add_undo(COUPLE_END);
@@ -577,7 +577,7 @@ void replace_marked_buffer(const char *filename)
 	cutbuffer = was_cutbuffer;
 
 	/* Insert the processed file where the marked text was. */
-	read_file(f, descriptor, filename, FALSE);
+	read_file(f, descriptor, filename, TRUE);
 
 	/* Restore the magicline behavior now that we're done fiddling. */
 	if (!old_no_newlines)
diff --git a/src/text.c b/src/text.c
index 9e7ff5ad..76ec3600 100644
--- a/src/text.c
+++ b/src/text.c
@@ -2906,14 +2906,8 @@ const char *do_alt_speller(char *tempfile_name)
 	/* Stat the temporary file again, and mark the buffer as modified only
 	 * if this file was changed since it was written. */
 	stat(tempfile_name, &spellfileinfo);
-	if (spellfileinfo.st_mtime != timestamp) {
+	if (spellfileinfo.st_mtime != timestamp)
 		set_modified();
-#ifndef NANO_TINY
-		/* Flush the undo stack, to avoid making a mess when the user
-		 * tries to undo things in spell-corrected lines. */
-		discard_until(NULL, openfile, FALSE);
-#endif
-	}
 
 #ifndef NANO_TINY
 	/* Unblock SIGWINCHes again. */