diff --git a/resources/systems/macos/es_systems.xml b/resources/systems/macos/es_systems.xml
index 15f664aae..4d95bfd4a 100644
--- a/resources/systems/macos/es_systems.xml
+++ b/resources/systems/macos/es_systems.xml
@@ -1083,7 +1083,7 @@
         <name>pcfx</name>
         <fullname>NEC PC-FX</fullname>
         <path>%ROMPATH%/pcfx</path>
-        <extension>.cue CUE .ccd .CCD .toc .TOC .chd .CHD .7z .7Z .zip .ZIP</extension>
+        <extension>.ccd .CCD .chd .CHD .cue CUE .m3u .M3U .toc .TOC .7z .7Z .zip .ZIP</extension>
         <command label="Beetle PC-FX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/mednafen_pcfx_libretro.dylib %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module pcfx %ROM%</command>
         <platform>pcfx</platform>
diff --git a/resources/systems/unix/es_systems.xml b/resources/systems/unix/es_systems.xml
index f79fbe079..d3c81c2a2 100644
--- a/resources/systems/unix/es_systems.xml
+++ b/resources/systems/unix/es_systems.xml
@@ -1102,7 +1102,7 @@
         <name>pcfx</name>
         <fullname>NEC PC-FX</fullname>
         <path>%ROMPATH%/pcfx</path>
-        <extension>.cue CUE .ccd .CCD .toc .TOC .chd .CHD .7z .7Z .zip .ZIP</extension>
+        <extension>.ccd .CCD .chd .CHD .cue CUE .m3u .M3U .toc .TOC .7z .7Z .zip .ZIP</extension>
         <command label="Beetle PC-FX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/mednafen_pcfx_libretro.so %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module pcfx %ROM%</command>
         <platform>pcfx</platform>
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index d8ef398e5..5e65bd3c1 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -1104,7 +1104,7 @@
         <name>pcfx</name>
         <fullname>NEC PC-FX</fullname>
         <path>%ROMPATH%\pcfx</path>
-        <extension>.cue CUE .ccd .CCD .toc .TOC .chd .CHD .7z .7Z .zip .ZIP</extension>
+        <extension>.ccd .CCD .chd .CHD .cue CUE .m3u .M3U .toc .TOC .7z .7Z .zip .ZIP</extension>
         <command label="Beetle PC-FX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\mednafen_pcfx_libretro.dll %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module pcfx %ROM%</command>
         <platform>pcfx</platform>