diff --git a/ibus-HEAD.patch b/ibus-HEAD.patch
index dc9f150..53cd713 100644
--- a/ibus-HEAD.patch
+++ b/ibus-HEAD.patch
@@ -4435,3 +4435,94 @@ index f8dced6b..92464234 100755
 -- 
 2.35.3
 
+From d47dbfada41aa4fb5df9f7cffe873786fc4849cc Mon Sep 17 00:00:00 2001
+From: fujiwarat <takao.fujiwara1@gmail.com>
+Date: Mon, 25 Jul 2022 17:22:21 +0900
+Subject: [PATCH] client/x11: Enhance Xutf8TextListToTextProperty
+
+XCompoundTextStyle depends on the current locale and some locales fail
+to to get the compound text style.
+If Xutf8TextListToTextProperty() fails, now ibus-x11 tries to get
+the compound text style with UTF-8 encoding.
+
+BUG=https://github.com/ibus/ibus/issues/2422
+---
+ client/x11/main.c | 41 ++++++++++++++++++++++++++++++++++-------
+ 1 file changed, 34 insertions(+), 7 deletions(-)
+
+diff --git a/client/x11/main.c b/client/x11/main.c
+index fe30c1d6..6057cc03 100644
+--- a/client/x11/main.c
++++ b/client/x11/main.c
+@@ -2,7 +2,7 @@
+ /* vim:set et sts=4: */
+ /* ibus
+  * Copyright (C) 2007-2015 Peng Huang <shawn.p.huang@gmail.com>
+- * Copyright (C) 2015-2021 Takao Fujiwara <takao.fujiwara1@gmail.com>
++ * Copyright (C) 2015-2022 Takao Fujiwara <takao.fujiwara1@gmail.com>
+  * Copyright (C) 2007-2015 Red Hat, Inc.
+  *
+  * main.c:
+@@ -48,6 +48,8 @@
+ 
+ #include <getopt.h>
+ 
++#define ESC_SEQUENCE_ISO10646_1 "\033%G"
++
+ #define LOG(level, fmt_args...) \
+     if (g_debug_level >= (level)) { \
+         g_debug (fmt_args); \
+@@ -254,9 +256,17 @@ _xim_preedit_callback_draw (XIMS xims, X11IC *x11ic, const gchar *preedit_string
+     text.feedback = feedback;
+ 
+     if (len > 0) {
+-        Xutf8TextListToTextProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+-                                     (char **)&preedit_string,
+-                                     1, XCompoundTextStyle, &tp);
++        int ret = Xutf8TextListToTextProperty (
++                GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
++                (char **)&preedit_string,
++                1, XCompoundTextStyle, &tp);
++        if (ret == EXIT_FAILURE) {
++            XFree (tp.value);
++            tp.value = (unsigned char *)g_strdup_printf (
++                    "%s%s",
++                    ESC_SEQUENCE_ISO10646_1,
++                    preedit_string);
++        }
+         text.encoding_is_wchar = 0;
+         text.length = strlen ((char*)tp.value);
+         text.string.multi_byte = (char*)tp.value;
+@@ -883,9 +893,26 @@ _context_commit_text_cb (IBusInputContext *context,
+ 
+     XTextProperty tp;
+     IMCommitStruct cms = {0};
+-
+-    Xutf8TextListToTextProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+-        (gchar **)&(text->text), 1, XCompoundTextStyle, &tp);
++    int ret;
++
++    ret = Xutf8TextListToTextProperty (
++            GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
++            (gchar **)&(text->text), 1, XCompoundTextStyle, &tp);
++    /* XCompoundTextStyle uses the encoding escaped sequence + encoded chars
++     * matched to the specified multibyte characters: text->text, and
++     * libX11.so sorts the encoding sets by locale.
++     * If an encoded string fails to be matched, ibus-x11 specifies the
++     * ISO10641-1 encoding and that escaped sequence is "\033%G":
++     * https://gitlab.freedesktop.org/xorg/lib/libx11/-/blob/master/src/xlibi18n/lcCT.c
++     * , and the encoding is UTF-8 with utf8_wctomb():
++     * https://gitlab.freedesktop.org/xorg/lib/libx11/-/blob/master/src/xlibi18n/lcUniConv/utf8.h
++     */
++    if (ret == EXIT_FAILURE) {
++        XFree (tp.value);
++        tp.value = (unsigned char *)g_strdup_printf ("%s%s",
++                                                     ESC_SEQUENCE_ISO10646_1,
++                                                     text->text);
++    }
+ 
+     cms.major_code = XIM_COMMIT;
+     cms.icid = x11ic->icid;
+-- 
+2.35.3
+
diff --git a/ibus.spec b/ibus.spec
index d1dd42a..9e23198 100644
--- a/ibus.spec
+++ b/ibus.spec
@@ -39,7 +39,7 @@
 
 Name:           ibus
 Version:        1.5.26
-Release:        14%{?dist}
+Release:        15%{?dist}
 Summary:        Intelligent Input Bus for Linux OS
 License:        LGPLv2+
 URL:            https://github.com/ibus/%name/wiki
@@ -524,6 +524,9 @@ dconf update || :
 %{_datadir}/installed-tests/ibus
 
 %changelog
+* Fri Jul 29 2022 Takao Fujiwara <tfujiwar@redhat.com> - 1.5.26-15
+- Enhance Xutf8TextListToTextProperty in ibus-x11
+
 * Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.5.26-14
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild