diff --git a/configure b/configure
index 1606c2fbfb1..b464850412c 100755
--- a/configure
+++ b/configure
@@ -1257,6 +1257,7 @@ enable_ext_ms_win_ntuser_message_l1_1_1
 enable_ext_ms_win_ntuser_misc_l1_5_1
 enable_ext_ms_win_ntuser_mouse_l1_1_0
 enable_ext_ms_win_ntuser_private_l1_1_1
+enable_ext_ms_win_ntuser_private_l1_3_1
 enable_ext_ms_win_ntuser_rectangle_ext_l1_1_0
 enable_ext_ms_win_ntuser_uicontext_ext_l1_1_0
 enable_ext_ms_win_ntuser_window_l1_1_1
@@ -18620,6 +18621,7 @@ wine_fn_config_makefile dlls/ext-ms-win-ntuser-message-l1-1-1 enable_ext_ms_win_
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-misc-l1-5-1 enable_ext_ms_win_ntuser_misc_l1_5_1
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-mouse-l1-1-0 enable_ext_ms_win_ntuser_mouse_l1_1_0
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-private-l1-1-1 enable_ext_ms_win_ntuser_private_l1_1_1
+wine_fn_config_makefile dlls/ext-ms-win-ntuser-private-l1-3-1 enable_ext_ms_win_ntuser_private_l1_3_1
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-rectangle-ext-l1-1-0 enable_ext_ms_win_ntuser_rectangle_ext_l1_1_0
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-uicontext-ext-l1-1-0 enable_ext_ms_win_ntuser_uicontext_ext_l1_1_0
 wine_fn_config_makefile dlls/ext-ms-win-ntuser-window-l1-1-1 enable_ext_ms_win_ntuser_window_l1_1_1
diff --git a/configure.ac b/configure.ac
index 88e62b24123..0795438572f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3254,6 +3254,7 @@ WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-message-l1-1-1)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-misc-l1-5-1)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-mouse-l1-1-0)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-private-l1-1-1)
+WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-private-l1-3-1)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-rectangle-ext-l1-1-0)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-uicontext-ext-l1-1-0)
 WINE_CONFIG_MAKEFILE(dlls/ext-ms-win-ntuser-window-l1-1-1)
diff --git a/dlls/ext-ms-win-ntuser-private-l1-3-1/Makefile.in b/dlls/ext-ms-win-ntuser-private-l1-3-1/Makefile.in
new file mode 100644
index 00000000000..c7866f943fa
--- /dev/null
+++ b/dlls/ext-ms-win-ntuser-private-l1-3-1/Makefile.in
@@ -0,0 +1 @@
+MODULE    = ext-ms-win-ntuser-private-l1-3-1.dll
diff --git a/dlls/ext-ms-win-ntuser-private-l1-3-1/ext-ms-win-ntuser-private-l1-3-1.spec b/dlls/ext-ms-win-ntuser-private-l1-3-1/ext-ms-win-ntuser-private-l1-3-1.spec
new file mode 100644
index 00000000000..9ceef768a28
--- /dev/null
+++ b/dlls/ext-ms-win-ntuser-private-l1-3-1/ext-ms-win-ntuser-private-l1-3-1.spec
@@ -0,0 +1,7 @@
+1502 stub @
+2506 stub @
+2508 stub @
+2518 stub @
+2548 stub @
+2551 stub @
+2560 stub @
diff --git a/tools/make_specfiles b/tools/make_specfiles
index e02d8884b76..c3997796d06 100755
--- a/tools/make_specfiles
+++ b/tools/make_specfiles
@@ -366,6 +366,7 @@ my @dll_groups =
   "ext-ms-win-ntuser-misc-l1-5-1",
   "ext-ms-win-ntuser-mouse-l1-1-0",
   "ext-ms-win-ntuser-private-l1-1-1",
+  "ext-ms-win-ntuser-private-l1-3-1",
   "ext-ms-win-ntuser-rectangle-ext-l1-1-0",
   "api-ms-win-ntuser-rectangle-l1-1-0",
   "ext-ms-win-ntuser-uicontext-ext-l1-1-0",