diff --git a/resources/systems/macos/es_systems.xml b/resources/systems/macos/es_systems.xml
index de67d95c2..c8cb3a6df 100644
--- a/resources/systems/macos/es_systems.xml
+++ b/resources/systems/macos/es_systems.xml
@@ -1477,7 +1477,7 @@
         <name>psp</name>
         <fullname>Sony PlayStation Portable</fullname>
         <path>%ROMPATH%/psp</path>
-        <extension>.cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
+        <extension>.chd .CHD .cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
         <command label="PPSSPP">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/ppsspp_libretro.dylib %ROM%</command>
         <command label="PPSSPP (Standalone)">%EMULATOR_PPSSPP% %ROM%</command>
         <platform>psp</platform>
diff --git a/resources/systems/unix/es_systems.xml b/resources/systems/unix/es_systems.xml
index 2bae720c2..65dcc9116 100644
--- a/resources/systems/unix/es_systems.xml
+++ b/resources/systems/unix/es_systems.xml
@@ -1556,7 +1556,7 @@
         <name>psp</name>
         <fullname>Sony PlayStation Portable</fullname>
         <path>%ROMPATH%/psp</path>
-        <extension>.cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
+        <extension>.chd .CHD .cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
         <command label="PPSSPP">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/ppsspp_libretro.so %ROM%</command>
         <command label="PPSSPP (Standalone)">%EMULATOR_PPSSPP% %ROM%</command>
         <platform>psp</platform>
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index 6148446ab..3e2b4534f 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -1530,7 +1530,7 @@
         <name>psp</name>
         <fullname>Sony PlayStation Portable</fullname>
         <path>%ROMPATH%\psp</path>
-        <extension>.cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
+        <extension>.chd .CHD .cso .CSO .elf .ELF .iso .ISO .pbp .PBP .prx .PRX .7z .7Z .zip .ZIP</extension>
         <command label="PPSSPP">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\ppsspp_libretro.dll %ROM%</command>
         <command label="PPSSPP (Standalone)">%EMULATOR_PPSSPP% %ROM%</command>
         <platform>psp</platform>