diff --git a/src/files.c b/src/files.c
index c94404a9..82eb79ec 100644
--- a/src/files.c
+++ b/src/files.c
@@ -498,7 +498,7 @@ bool open_buffer(const char *filename, bool new_buffer)
 #ifdef ENABLE_SPELLER
 /* Open the specified file, and if that succeeds, blow away the text of
  * the current buffer and read the file contents into its place. */
-void replace_buffer(const char *filename)
+void replace_buffer(const char *filename, undo_type action, bool marked)
 {
 	FILE *f;
 	int descriptor;
@@ -516,21 +516,25 @@ void replace_buffer(const char *filename)
 	openfile->undotop->strdata = mallocstrcpy(NULL, _("spelling correction"));
 #endif
 
-	/* Throw away the text of the file. */
+	/* When nothing is marked, start at the top of the buffer. */
+	if (!marked) {
+		openfile->current = openfile->filetop;
+		openfile->current_x = 0;
+	}
+
+	/* Throw away the marked region or the whole buffer. */
 	cutbuffer = NULL;
-	openfile->current = openfile->filetop;
-	openfile->current_x = 0;
 #ifndef NANO_TINY
-	add_undo(CUT_TO_EOF);
+	add_undo(action);
 #endif
-	do_cut_text(FALSE, FALSE, TRUE, FALSE);
+	do_cut_text(FALSE, marked, !marked, FALSE);
 #ifndef NANO_TINY
-	update_undo(CUT_TO_EOF);
+	update_undo(action);
 #endif
 	free_lines(cutbuffer);
 	cutbuffer = was_cutbuffer;
 
-	/* Insert the processed file into its place. */
+	/* Insert the spell-checked file into the cleared area. */
 	read_file(f, descriptor, filename, TRUE);
 
 #ifndef NANO_TINY
diff --git a/src/proto.h b/src/proto.h
index 22a761cd..e5f7742d 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -267,7 +267,7 @@ void make_new_buffer(void);
 void set_modified(void);
 bool open_buffer(const char *filename, bool new_buffer);
 #ifdef ENABLE_SPELLER
-void replace_buffer(const char *filename);
+void replace_buffer(const char *filename, undo_type action, bool marked);
 #ifndef NANO_TINY
 void replace_marked_buffer(const char *filename);
 #endif
diff --git a/src/text.c b/src/text.c
index 299c5562..1b1e2204 100644
--- a/src/text.c
+++ b/src/text.c
@@ -2596,7 +2596,7 @@ const char *do_alt_speller(char *tempfile_name)
 									openfile->mark_x < openfile->current_x));
 			ssize_t was_mark_lineno = openfile->mark->lineno;
 
-			replace_marked_buffer(tempfile_name);
+			replace_buffer(tempfile_name, CUT, TRUE);
 
 			/* Adjust the end point of the marked region for any change in
 			 * length of the region's last line. */
@@ -2609,7 +2609,7 @@ const char *do_alt_speller(char *tempfile_name)
 			openfile->mark = fsfromline(was_mark_lineno);
 		} else
 #endif
-			replace_buffer(tempfile_name);
+			replace_buffer(tempfile_name, CUT_TO_EOF, FALSE);
 
 		/* Go back to the old position. */
 		goto_line_posx(lineno_save, current_x_save);