diff --git a/texk/web2c/ctiedir/ChangeLog b/texk/web2c/ctiedir/ChangeLog
index 5af1c85e12..adb0c68991 100644
--- a/texk/web2c/ctiedir/ChangeLog
+++ b/texk/web2c/ctiedir/ChangeLog
@@ -1,3 +1,7 @@
+2023-05-21  Andreas Scherer  <https://ascherer.github.io>
+
+	* ctie-k.ch: Handle deletion of last line in 'master' file.
+
 2021-04-06  Andreas Scherer  <https://ascherer.github.io>
 
 	* ctie-k.ch: Use 'putc' for single newline character.
diff --git a/texk/web2c/ctiedir/ctie-k.ch b/texk/web2c/ctiedir/ctie-k.ch
index 978737bf76..55539f2fd0 100644
--- a/texk/web2c/ctiedir/ctie-k.ch
+++ b/texk/web2c/ctiedir/ctie-k.ch
@@ -567,6 +567,16 @@ static boolean
 e_of_ch_preamble (file_index i)
 @z
 
+@x l.1079
+if (out_mode==post) /* last line has been changed */
+    fprintf(out_file, "@@z\n");
+@y
+if (out_mode==post) /* last line has been changed */
+    fprintf(out_file, "@@z\n");
+else if (out_mode==pre) /* last line has been deleted */
+    fprintf(out_file, "@@y\n@@z\n");
+@z
+
 @x l.1106
 void usage_error()
 {
diff --git a/texk/web2c/tiedir/ChangeLog b/texk/web2c/tiedir/ChangeLog
index c83da87123..7c39a2506f 100644
--- a/texk/web2c/tiedir/ChangeLog
+++ b/texk/web2c/tiedir/ChangeLog
@@ -1,3 +1,7 @@
+2023-05-21  Andreas Scherer  <https://ascherer.github.io>
+
+	* tie-w2c.ch: Handle deletion of last line in 'master' file.
+
 2021-04-04  Andreas Scherer  <https://ascherer.github.io>
 
 	* tie-w2c.ch: Delete dot in banner line.
diff --git a/texk/web2c/tiedir/tie-w2c.ch b/texk/web2c/tiedir/tie-w2c.ch
index 639d200831..e4597e0fc3 100644
--- a/texk/web2c/tiedir/tie-w2c.ch
+++ b/texk/web2c/tiedir/tie-w2c.ch
@@ -396,6 +396,26 @@ if (prod_chf==chf)
 else
 @z
 
+Section 53.
+
+@x l.1133
+if (out_mode==post) { /* last line has been changed */
+   fputc(map_xchr(@'@@'),out_file); fputc(map_xchr(@'z'),out_file);
+   new_line(out_file);
+   }
+@y
+if (out_mode==post) { /* last line has been changed */
+   fputc(map_xchr(@'@@'),out_file); fputc(map_xchr(@'z'),out_file);
+   new_line(out_file);
+   }
+else if (out_mode==pre) { /* last line has been deleted */
+   fputc(map_xchr(@'@@'),out_file); fputc(map_xchr(@'y'),out_file);
+   new_line(out_file);
+   fputc(map_xchr(@'@@'),out_file); fputc(map_xchr(@'z'),out_file);
+   new_line(out_file);
+   }
+@z
+
 Section 55
 
 @x l.1158