diff --git a/tools/make_unicode b/tools/make_unicode
index da4c732bc3e..5d180310b48 100755
--- a/tools/make_unicode
+++ b/tools/make_unicode
@@ -1235,7 +1235,6 @@ sub dump_linebreak($)
 {
     my $filename = shift;
     my @break_table;
-    my $next_group = 0;
 
     my $INPUT = open_data_file( $UNIDATA, "LineBreak.txt" );
     while (<$INPUT>)