diff --git a/SerialPrograms/CMakeLists.txt b/SerialPrograms/CMakeLists.txt
index 43b59c88b9..84d64c2009 100644
--- a/SerialPrograms/CMakeLists.txt
+++ b/SerialPrograms/CMakeLists.txt
@@ -462,7 +462,12 @@ else() # macOS and Linux
     endif()
 
     if (APPLE)
-        target_compile_options(SerialProgramsLib PRIVATE -Wall -Wextra -Wpedantic -Werror -Wshorten-64-to-32)
+        if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm")
+            target_compile_options(SerialProgramsLib PRIVATE -Wall -Wextra -Wpedantic -Werror -Wshorten-64-to-32)
+        else()
+            target_compile_options(SerialProgramsLib PRIVATE -Wall -Wextra -Wpedantic -Werror -Wno-unused-parameter)
+        endif()
+        
         # on macOS, need this framework to query OS API to control display sleep and system sleep behavior
         target_link_libraries(SerialProgramsLib PRIVATE "-framework IOKit -framework CoreFoundation")
     else() # Linux
diff --git a/SerialPrograms/cmake/MacOSXBundleInfo.plist.in b/SerialPrograms/cmake/MacOSXBundleInfo.plist.in
index b23642e29e..3f01fbce4e 100644
--- a/SerialPrograms/cmake/MacOSXBundleInfo.plist.in
+++ b/SerialPrograms/cmake/MacOSXBundleInfo.plist.in
@@ -2,6 +2,13 @@
 <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>LSEnvironment</key>
+    <dict>
+        <key>LANG</key>
+        <string>en_US.UTF-8</string>
+        <key>LC_ALL</key>
+        <string>en_US.UTF-8</string>
+    </dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>English</string>
 	<key>CFBundleExecutable</key>