diff --git a/resources/systems/linux/es_systems.xml b/resources/systems/linux/es_systems.xml
index 0e1b34fe4..f05b6b27f 100644
--- a/resources/systems/linux/es_systems.xml
+++ b/resources/systems/linux/es_systems.xml
@@ -511,7 +511,7 @@
         <name>doom</name>
         <fullname>Doom</fullname>
         <path>%ROMPATH%/doom</path>
-        <extension>.desktop .iwad .IWAD .pk4 .PK4 .pwad .PWAD .sh .wad .WAD</extension>
+        <extension>.desktop .ipk3 .IPK3 .iwad .IWAD .pk3 .PK3 .pk4 .PK4 .pwad .PWAD .sh .wad .WAD</extension>
         <command label="PrBoom">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/prboom_libretro.so %ROM%</command>
         <command label="PrBoom+ (Standalone)">%EMULATOR_PRBOOM-PLUS% -iwad %ROM%</command>
         <command label="Boom 3">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/boom3_libretro.so %ROM%</command>
diff --git a/resources/systems/unix/es_systems.xml b/resources/systems/unix/es_systems.xml
index 1c78a5b5c..9112797a8 100644
--- a/resources/systems/unix/es_systems.xml
+++ b/resources/systems/unix/es_systems.xml
@@ -504,7 +504,7 @@
         <name>doom</name>
         <fullname>Doom</fullname>
         <path>%ROMPATH%/doom</path>
-        <extension>.desktop .iwad .IWAD .pk4 .PK4 .pwad .PWAD .sh .wad .WAD</extension>
+        <extension>.desktop .ipk3 .IPK3 .iwad .IWAD .pk3 .PK3 .pk4 .PK4 .pwad .PWAD .sh .wad .WAD</extension>
         <command label="PrBoom">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/prboom_libretro.so %ROM%</command>
         <command label="PrBoom+ (Standalone)">%EMULATOR_PRBOOM-PLUS% -iwad %ROM%</command>
         <command label="Boom 3">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/boom3_libretro.so %ROM%</command>
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index ff5448c93..fd5ac2204 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -509,7 +509,7 @@
         <name>doom</name>
         <fullname>Doom</fullname>
         <path>%ROMPATH%\doom</path>
-        <extension>.bat .BAT .iwad .IWAD .lnk .LNK .pk4 .PK4 .pwad .PWAD .wad .WAD</extension>
+        <extension>.bat .BAT .ipk3 .IPK3 .iwad .IWAD .lnk .LNK .pk3 .PK3 .pk4 .PK4 .pwad .PWAD .wad .WAD</extension>
         <command label="PrBoom">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\prboom_libretro.dll %ROM%</command>
         <command label="PrBoom+ (Standalone)">%EMULATOR_PRBOOM-PLUS% -iwad %ROM%</command>
         <command label="Boom 3">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\boom3_libretro.dll %ROM%</command>