diff --git a/LttPAdjuster.py b/LttPAdjuster.py
index ad419883..472b9900 100644
--- a/LttPAdjuster.py
+++ b/LttPAdjuster.py
@@ -130,7 +130,7 @@ def adjust(args):
     logger = logging.getLogger('Adjuster')
     logger.info('Patching ROM.')
     vanillaRom = args.baserom
-    if os.path.splitext(args.rom)[-1].lower() == '.apbp':
+    if os.path.splitext(args.rom)[-1].lower() in {'.apbp', '.aplttp'}:
         import Patch
         meta, args.rom = Patch.create_rom_file(args.rom)
 
diff --git a/inno_setup.iss b/inno_setup.iss
index d70f1f79..d35792df 100644
--- a/inno_setup.iss
+++ b/inno_setup.iss
@@ -138,7 +138,7 @@ Root: HKCR; Subkey: "{#MyAppName}smpatch";                     ValueData: "Archi
 Root: HKCR; Subkey: "{#MyAppName}smpatch\DefaultIcon";         ValueData: "{app}\ArchipelagoSNIClient.exe,0";                           ValueType: string;  ValueName: ""; Components: client/sni
 Root: HKCR; Subkey: "{#MyAppName}smpatch\shell\open\command";  ValueData: """{app}\ArchipelagoSNIClient.exe"" ""%1""";                  ValueType: string;  ValueName: ""; Components: client/sni
 
-Root: HKCR; Subkey: ".smz3";                                 ValueData: "{#MyAppName}smz3patch";        Flags: uninsdeletevalue; ValueType: string;  ValueName: ""; Components: client/sni
+Root: HKCR; Subkey: ".apsmz3";                                 ValueData: "{#MyAppName}smz3patch";        Flags: uninsdeletevalue; ValueType: string;  ValueName: ""; Components: client/sni
 Root: HKCR; Subkey: "{#MyAppName}smz3patch";                     ValueData: "Archipelago SMZ3 Patch"; Flags: uninsdeletekey;   ValueType: string;  ValueName: ""; Components: client/sni
 Root: HKCR; Subkey: "{#MyAppName}smz3patch\DefaultIcon";         ValueData: "{app}\ArchipelagoSNIClient.exe,0";                           ValueType: string;  ValueName: ""; Components: client/sni
 Root: HKCR; Subkey: "{#MyAppName}smz3patch\shell\open\command";  ValueData: """{app}\ArchipelagoSNIClient.exe"" ""%1""";
diff --git a/worlds/smz3/Rom.py b/worlds/smz3/Rom.py
index 9c468fc5..a97fe167 100644
--- a/worlds/smz3/Rom.py
+++ b/worlds/smz3/Rom.py
@@ -12,7 +12,7 @@ ROM_PLAYER_LIMIT = 256
 class SMZ3DeltaPatch(APDeltaPatch):
     hash = "3a177ba9879e3dd04fb623a219d175b2"
     game = "SMZ3"
-    patch_file_ending = ".smz3"
+    patch_file_ending = ".apsmz3"
 
     @classmethod
     def get_source_data(cls) -> bytes: