diff --git a/resources/templates/es_systems.cfg_macos b/resources/templates/es_systems.cfg_macos
index 5b9e6e55b..69212c02a 100644
--- a/resources/templates/es_systems.cfg_macos
+++ b/resources/templates/es_systems.cfg_macos
@@ -293,7 +293,7 @@
     <name>dos</name>
     <fullname>DOS (PC)</fullname>
     <path>%ROMPATH%/dos</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>/Applications/RetroArch.app/Contents/MacOS/RetroArch -L %EMUPATH%/../Resources/cores/dosbox_core_libretro.dylib %ROM%</command>
     <platform>dos</platform>
     <theme>dos</theme>
@@ -698,7 +698,7 @@
     <name>pc</name>
     <fullname>IBM PC</fullname>
     <path>%ROMPATH%/pc</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>/Applications/RetroArch.app/Contents/MacOS/RetroArch -L %EMUPATH%/../Resources/cores/dosbox_core_libretro.dylib %ROM%</command>
     <platform>pc</platform>
     <theme>pc</theme>
diff --git a/resources/templates/es_systems.cfg_unix b/resources/templates/es_systems.cfg_unix
index bdc5b8e04..d85b8bd1d 100644
--- a/resources/templates/es_systems.cfg_unix
+++ b/resources/templates/es_systems.cfg_unix
@@ -293,7 +293,7 @@
     <name>dos</name>
     <fullname>DOS (PC)</fullname>
     <path>%ROMPATH%/dos</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>retroarch -L %COREPATH%/dosbox_core_libretro.so %ROM%</command>
     <platform>dos</platform>
     <theme>dos</theme>
@@ -698,7 +698,7 @@
     <name>pc</name>
     <fullname>IBM PC</fullname>
     <path>%ROMPATH%/pc</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>retroarch -L %COREPATH%/dosbox_core_libretro.so %ROM%</command>
     <platform>pc</platform>
     <theme>pc</theme>
diff --git a/resources/templates/es_systems.cfg_unix_flatpak b/resources/templates/es_systems.cfg_unix_flatpak
index ee1319a7f..2c62ae247 100644
--- a/resources/templates/es_systems.cfg_unix_flatpak
+++ b/resources/templates/es_systems.cfg_unix_flatpak
@@ -293,7 +293,7 @@
     <name>dos</name>
     <fullname>DOS (PC)</fullname>
     <path>%ROMPATH%/dos</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>flatpak run org.libretro.RetroArch -L %COREPATH%/dosbox_core_libretro.so %ROM%</command>
     <platform>dos</platform>
     <theme>dos</theme>
@@ -698,7 +698,7 @@
     <name>pc</name>
     <fullname>IBM PC</fullname>
     <path>%ROMPATH%/pc</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>flatpak run org.libretro.RetroArch -L %COREPATH%/dosbox_core_libretro.so %ROM%</command>
     <platform>pc</platform>
     <theme>pc</theme>
diff --git a/resources/templates/es_systems.cfg_windows b/resources/templates/es_systems.cfg_windows
index c487cba31..147b60767 100644
--- a/resources/templates/es_systems.cfg_windows
+++ b/resources/templates/es_systems.cfg_windows
@@ -293,7 +293,7 @@
     <name>dos</name>
     <fullname>DOS (PC)</fullname>
     <path>%ROMPATH%\dos</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>retroarch.exe -L %EMUPATH%\cores\dosbox_core_libretro.dll %ROM%</command>
     <platform>dos</platform>
     <theme>dos</theme>
@@ -698,7 +698,7 @@
     <name>pc</name>
     <fullname>IBM PC</fullname>
     <path>%ROMPATH%\pc</path>
-    <extension>.bat .BAT .com .COM .exe .EXE .7z .7Z .zip .ZIP</extension>
+    <extension>.bat .BAT .com .COM .conf .CONF .cue .CUE .exe .EXE .iso .ISO .7z .7Z .zip .ZIP</extension>
     <command>retroarch.exe -L %EMUPATH%\cores\dosbox_core_libretro.dll %ROM%</command>
     <platform>pc</platform>
     <theme>pc</theme>