diff --git a/source/texk/web2c/ptexdir/ChangeLog b/source/texk/web2c/ptexdir/ChangeLog
index 648289618..13b7b647c 100644
--- a/source/texk/web2c/ptexdir/ChangeLog
+++ b/source/texk/web2c/ptexdir/ChangeLog
@@ -1,3 +1,11 @@
+2025-02-09  Hironori Kitagawa  <h_kitagawa2001@yahoo.co.jp>
+
+	* ptex-base.ch:
+	Forgot to increase size of eqtb[] 256 -> 1024, when
+	inhibit_xsp/kinsoku tables were increased 256 -> 1024.
+	(Commit 2022-12-12 r65246-65248 was incomplete, and the
+	fix on commit 2024-09-22 r72333 was incorrect).
+
 2025-02-02  TANAKA Takuji  <ttk@t-lab.opal.ne.jp>
 
 	* ptex-prntknj.test, tests/pknj-{e,s}.log: Update tests.
diff --git a/source/texk/web2c/ptexdir/ptex-base.ch b/source/texk/web2c/ptexdir/ptex-base.ch
index 6609dac16..39e46e6c8 100644
--- a/source/texk/web2c/ptexdir/ptex-base.ch
+++ b/source/texk/web2c/ptexdir/ptex-base.ch
@@ -1307,10 +1307,9 @@ for k:=0 to 255 do
   begin cat_code(k):=other_char; kcat_code(k):=other_kchar;
   math_code(k):=hi(k); sf_code(k):=1000;
   auto_xsp_code(k):=0;
-  inhibit_xsp_type(k):=0;
   end;
 for k:=0 to 1023 do
-  begin inhibit_xsp_code(k):=0;
+  begin inhibit_xsp_code(k):=0; inhibit_xsp_type(k):=0;
   kinsoku_code(k):=0; kinsoku_type(k):=0;
   end;
 @z
diff --git a/source/texk/web2c/uptexdir/ChangeLog b/source/texk/web2c/uptexdir/ChangeLog
index eea22d9fd..b8c30b20b 100644
--- a/source/texk/web2c/uptexdir/ChangeLog
+++ b/source/texk/web2c/uptexdir/ChangeLog
@@ -1,3 +1,11 @@
+2025-02-09  Hironori Kitagawa  <h_kitagawa2001@yahoo.co.jp>
+
+	* ptex-base.ch, uptex-m.ch:
+	Forgot to increase size of eqtb[] 256 -> 1024, when
+	inhibit_xsp/kinsoku tables were increased 256 -> 1024.
+	(Commit 2022-12-12 r65246-65248 was incomplete, and the
+	fix on commit 2024-09-22 r72333 was incorrect).
+
 2025-02-08  TANAKA Takuji  <ttk@t-lab.opal.ne.jp>
 
 	* uptex-m.ch: Enable ^^^^xyzw format only when
diff --git a/source/texk/web2c/uptexdir/ptex-base.ch b/source/texk/web2c/uptexdir/ptex-base.ch
index 6609dac16..39e46e6c8 100644
--- a/source/texk/web2c/uptexdir/ptex-base.ch
+++ b/source/texk/web2c/uptexdir/ptex-base.ch
@@ -1307,10 +1307,9 @@ for k:=0 to 255 do
   begin cat_code(k):=other_char; kcat_code(k):=other_kchar;
   math_code(k):=hi(k); sf_code(k):=1000;
   auto_xsp_code(k):=0;
-  inhibit_xsp_type(k):=0;
   end;
 for k:=0 to 1023 do
-  begin inhibit_xsp_code(k):=0;
+  begin inhibit_xsp_code(k):=0; inhibit_xsp_type(k):=0;
   kinsoku_code(k):=0; kinsoku_type(k):=0;
   end;
 @z
diff --git a/source/texk/web2c/uptexdir/uptex-m.ch b/source/texk/web2c/uptexdir/uptex-m.ch
index 6abd7bc78..3fd7430b9 100644
--- a/source/texk/web2c/uptexdir/uptex-m.ch
+++ b/source/texk/web2c/uptexdir/uptex-m.ch
@@ -328,7 +328,6 @@ for k:=0 to 255 do
   begin cat_code(k):=other_char; kcat_code(k):=other_kchar;
   math_code(k):=hi(k); sf_code(k):=1000;
   auto_xsp_code(k):=0;
-  inhibit_xsp_type(k):=0;
   end;
 @y
 eqtb[auto_xspacing_code]:=eqtb[cat_code_base];
@@ -337,7 +336,6 @@ for k:=0 to 255 do
   begin cat_code(k):=other_char;
   math_code(k):=hi(k);
   auto_xsp_code(k):=0;
-  inhibit_xsp_type(k):=0;
   end;
 for k:=0 to 511 do
   begin kcat_code(k):=other_kchar;