diff --git a/BizHawk.Client.EmuHawk/MainForm.cs b/BizHawk.Client.EmuHawk/MainForm.cs
index b1c651ab30..f4088381df 100644
--- a/BizHawk.Client.EmuHawk/MainForm.cs
+++ b/BizHawk.Client.EmuHawk/MainForm.cs
@@ -1670,7 +1670,7 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
-			var str = sb.ToString().Replace("%ARCH%", "*.zip;*.rar;*.7z");
+			var str = sb.ToString().Replace("%ARCH%", "*.zip;*.rar;*.7z;*.gz");
 			str = str.Replace(";", "; ");
 			return str;
 		}