diff --git a/FU/Util.pm b/FU/Util.pm
index 5b262fb..7d585d9 100644
--- a/FU/Util.pm
+++ b/FU/Util.pm
@@ -41,6 +41,7 @@ sub uri_unescape :prototype($) ($s) {
 sub query_decode :prototype($) ($s) {
     my %o;
     for (split /&/, $s//'') {
+        next if !length;
         my($k,$v) = map uri_unescape($_), split /=/, $_, 2;
         $v //= builtin::true;
         if (ref $o{$k}) { push $o{$k}->@*, $v }
diff --git a/t/query.t b/t/query.t
index ebeff80..80f2b00 100644
--- a/t/query.t
+++ b/t/query.t
@@ -10,6 +10,8 @@ is_deeply
 ok !eval { query_decode('%10'); 1 };
 like $@, qr/Invalid control character/;
 
+is_deeply query_decode('&&&a=b'), { a => 'b' };
+
 is query_encode
     { a => builtin::true, b => undef, c => builtin::false, d => 'string', e => "&=\xfe" },
     'a&d=string&e=%26%3d%c3%be';