diff --git a/CMakeLists.txt b/CMakeLists.txt
index c2a3609..9be989d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.6)
 
-project(fcitx5-unikey VERSION 5.1.3)
+project(fcitx5-unikey VERSION 5.1.4)
 
 find_package(ECM 1.0.0 REQUIRED)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
diff --git a/org.fcitx.Fcitx5.Addon.Unikey.metainfo.xml.in b/org.fcitx.Fcitx5.Addon.Unikey.metainfo.xml.in
index 183f0dd..ee09c14 100644
--- a/org.fcitx.Fcitx5.Addon.Unikey.metainfo.xml.in
+++ b/org.fcitx.Fcitx5.Addon.Unikey.metainfo.xml.in
@@ -14,6 +14,7 @@
   <url type="vcs-browser">https://github.com/fcitx/fcitx5-unikey</url>
   <project_group>Fcitx</project_group>
   <releases>
+    <release version="5.1.4" date="2024-04-22"/>
     <release version="5.1.3" date="2024-02-28"/>
     <release version="5.1.2" date="2024-01-02"/>
     <release version="5.1.1" date="2023-09-29"/>
diff --git a/unikey/mactab.cpp b/unikey/mactab.cpp
index 9af0f80..990637b 100644
--- a/unikey/mactab.cpp
+++ b/unikey/mactab.cpp
@@ -26,7 +26,7 @@ char *MacCompareStartMem;
 
 #define STD_TO_LOWER(x)                                                        \
     (((x) >= VnStdCharOffset &&                                                \
-      (x) < (VnStdCharOffset + TOTAL_ALPHA_VNCHARS) && !((x)&1))               \
+      (x) < (VnStdCharOffset + TOTAL_ALPHA_VNCHARS) && !((x) & 1))             \
          ? (x + 1)                                                             \
          : (x))