diff --git a/BizHawk.Client.EmuHawk/MainForm.cs b/BizHawk.Client.EmuHawk/MainForm.cs
index 8671d2ae83..5f90004c33 100644
--- a/BizHawk.Client.EmuHawk/MainForm.cs
+++ b/BizHawk.Client.EmuHawk/MainForm.cs
@@ -1802,18 +1802,19 @@ namespace BizHawk.Client.EmuHawk
 					"Commodore 64 (experimental)", "*.prg; *.d64, *.g64; *.crt;%ARCH%",
 					"SID Commodore 64 Music File", "*.sid;%ARCH%",
 					"Nintendo 64", "*.z64;*.v64;*.n64",
-					"WonderSawn", "*.ws;*.wsc;%ARCH%",
+					"WonderSwan", "*.ws;*.wsc;%ARCH%",
 					"All Files", "*.*");
 			}
 			else
 			{
 				ofd.Filter = FormatFilter(
-					"Rom Files", "*.nes;*.fds;*.sms;*.gg;*.sg;*.gb;*.gbc;*.pce;*.sgx;*.bin;*.smd;*.gen;*.md;*.smc;*.sfc;*.a26;*.a78;*.col;*.rom;*.cue;*.sgb;*.z64;*.v64;*.n64;*.ws;*.wsc;*.xml;%ARCH%",
+					"Rom Files", "*.nes;*.fds;*.sms;*.gg;*.sg;*.gb;*.gbc;*.gba;*.pce;*.sgx;*.bin;*.smd;*.gen;*.md;*.smc;*.sfc;*.a26;*.a78;*.col;*.rom;*.cue;*.sgb;*.z64;*.v64;*.n64;*.ws;*.wsc;*.xml;%ARCH%",
 					"Disc Images", "*.cue",
 					"NES", "*.nes;*.fds;%ARCH%",
 					"Super NES", "*.smc;*.sfc;*.xml;%ARCH%",
 					"Nintendo 64", "*.z64;*.v64;*.n64",
 					"Gameboy", "*.gb;*.gbc;*.sgb;%ARCH%",
+					"Gameboy Advance", "*.gba;%ARCH%",
 					"Master System", "*.sms;*.gg;*.sg;%ARCH%",
 					"PC Engine", "*.pce;*.sgx;*.cue;%ARCH%",
 					"Atari 2600", "*.a26;%ARCH%",
@@ -1823,7 +1824,7 @@ namespace BizHawk.Client.EmuHawk
 					"Archive Files", "%ARCH%",
 					"Savestate", "*.state",
 					"Genesis", "*.gen;*.md;*.smd;*.bin;*.cue;%ARCH%",
-					"WonderSawn", "*.ws;*.wsc;%ARCH%",
+					"WonderSwan", "*.ws;*.wsc;%ARCH%",
 					"All Files", "*.*");
 			}