diff --git a/resources/templates/es_systems.cfg_macos b/resources/templates/es_systems.cfg_macos
index 74f9653c2..2862a54cd 100644
--- a/resources/templates/es_systems.cfg_macos
+++ b/resources/templates/es_systems.cfg_macos
@@ -95,7 +95,7 @@
     <name>arcade</name>
     <fullname>Arcade</fullname>
     <path>%ROMPATH%/arcade</path>
-    <extension>.chd .CHD .cmd .CMD .7z .7Z .zip .ZIP</extension>
+    <extension>.cmd .CMD .7z .7Z .zip .ZIP</extension>
     <command>/Applications/RetroArch.app/Contents/MacOS/RetroArch -L %EMUPATH%/../Resources/cores/mame_libretro.dylib %ROM%</command>
     <platform>arcade</platform>
     <theme>arcade</theme>
diff --git a/resources/templates/es_systems.cfg_unix b/resources/templates/es_systems.cfg_unix
index b3f2e9e8e..fa6b14a05 100644
--- a/resources/templates/es_systems.cfg_unix
+++ b/resources/templates/es_systems.cfg_unix
@@ -95,7 +95,7 @@
     <name>arcade</name>
     <fullname>Arcade</fullname>
     <path>%ROMPATH%/arcade</path>
-    <extension>.chd .CHD .cmd .CMD .7z .7Z .zip .ZIP</extension>
+    <extension>.cmd .CMD .7z .7Z .zip .ZIP</extension>
     <command>retroarch -L %COREPATH%/mame_libretro.so %ROM%</command>
     <platform>arcade</platform>
     <theme>arcade</theme>
diff --git a/resources/templates/es_systems.cfg_unix_flatpak b/resources/templates/es_systems.cfg_unix_flatpak
index 4fa887870..e064d7a47 100644
--- a/resources/templates/es_systems.cfg_unix_flatpak
+++ b/resources/templates/es_systems.cfg_unix_flatpak
@@ -95,7 +95,7 @@
     <name>arcade</name>
     <fullname>Arcade</fullname>
     <path>%ROMPATH%/arcade</path>
-    <extension>.chd .CHD .cmd .CMD .7z .7Z .zip .ZIP</extension>
+    <extension>.cmd .CMD .7z .7Z .zip .ZIP</extension>
     <command>flatpak run org.libretro.RetroArch -L %COREPATH%/mame_libretro.so %ROM%</command>
     <platform>arcade</platform>
     <theme>arcade</theme>
diff --git a/resources/templates/es_systems.cfg_windows b/resources/templates/es_systems.cfg_windows
index e683e1f12..49bae02a0 100644
--- a/resources/templates/es_systems.cfg_windows
+++ b/resources/templates/es_systems.cfg_windows
@@ -95,7 +95,7 @@
     <name>arcade</name>
     <fullname>Arcade</fullname>
     <path>%ROMPATH%\arcade</path>
-    <extension>.chd .CHD .cmd .CMD .7z .7Z .zip .ZIP</extension>
+    <extension>.cmd .CMD .7z .7Z .zip .ZIP</extension>
     <command>retroarch.exe -L %EMUPATH%\cores\mame_libretro.dll %ROM%</command>
     <platform>arcade</platform>
     <theme>arcade</theme>