1 files changed, 5 insertions, 2 deletions
diff --git a/dgit b/dgit
index f821299..ea14ba5 100755
--- a/dgit
+++ b/dgit
@@ -74,7 +74,8 @@ our $tagformat_want;
 our $tagformat;
 our $tagformatfn;
 
-our %forceopts = map { $_=>0 } qw(unrepresentable);
+our %forceopts = map { $_=>0 }
+    qw(unrepresentable unsupported-source-format);
 
 our %format_ok = map { $_=>1 } ("1.0","3.0 (native)","3.0 (quilt)");
 
@@ -1308,7 +1309,9 @@ sub get_archive_dsc () {
 	$dsc = parsecontrolfh($dscfh,$dscurl,1);
 	printdebug Dumper($dsc) if $debuglevel>1;
 	my $fmt = getfield $dsc, 'Format';
-	fail "unsupported source format $fmt, sorry" unless $format_ok{$fmt};
+	$format_ok{$fmt} or forceable_fail [qw(unsupported-source-format)],
+	    "unsupported source format $fmt, sorry";
+	    
 	$dsc_checked = !!$digester;
 	printdebug "get_archive_dsc: Version ".(getfield $dsc, 'Version')."\n";
 	return;