diff --git a/SabreTools.Helper/Dats/Partials/DatFile.Rebuild.cs b/SabreTools.Helper/Dats/Partials/DatFile.Rebuild.cs
index 89ed0385..ff7da1e5 100644
--- a/SabreTools.Helper/Dats/Partials/DatFile.Rebuild.cs
+++ b/SabreTools.Helper/Dats/Partials/DatFile.Rebuild.cs
@@ -487,6 +487,10 @@ namespace SabreTools.Helper.Dats
 					{
 						outDir = Path.Combine(outDir, Style.GetRombaPath(rom.SHA1));
 					}
+					else
+					{
+						outDir = Path.Combine(outDir, rom.SHA1 + ".gz");
+					}
 
 					// Make sure the output folder is created
 					Directory.CreateDirectory(Path.GetDirectoryName(outDir));
@@ -586,6 +590,10 @@ namespace SabreTools.Helper.Dats
 					{
 						outDir = Path.Combine(outDir, Style.GetRombaPath(rom.SHA1));
 					}
+					else
+					{
+						outDir = Path.Combine(outDir, rom.SHA1 + ".gz");
+					}
 
 					// Make sure the output folder is created
 					Directory.CreateDirectory(Path.GetDirectoryName(outDir));