fs/torrentfs.go      | 3 +++
 fs/torrentfs_test.go | 1 +

diff --git a/fs/torrentfs.go b/fs/torrentfs.go
index 0f1cc9e6c7244b45b12ae02800e32cb4babf83b2..55834a241379e4a07d9aa3e8ca45590d6984e525 100644
--- a/fs/torrentfs.go
+++ b/fs/torrentfs.go
@@ -158,6 +158,9 @@ 	_ fusefs.HandleReader       = fileNode{}
 )
 
 func isSubPath(parent, child string) bool {
+	if len(parent) == 0 {
+		return len(child) > 0
+	}
 	if !strings.HasPrefix(child, parent) {
 		return false
 	}
diff --git a/fs/torrentfs_test.go b/fs/torrentfs_test.go
index da83a75b391c2fd8ee88a509414e7c33ad365937..f3564124d724ada75df60b285b7143b0b757242d 100644
--- a/fs/torrentfs_test.go
+++ b/fs/torrentfs_test.go
@@ -214,6 +214,7 @@ 		is            bool
 	}{
 		{"", "", false},
 		{"", "/", true},
+		{"", "a", true},
 		{"a/b", "a/bc", false},
 		{"a/b", "a/b", false},
 		{"a/b", "a/b/c", true},