diff --git a/Lib/tarfile.py b/Lib/tarfile.py
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -1297,7 +1297,7 @@
         # the longname information.
         next.offset = self.offset
         if self.type == GNUTYPE_LONGNAME:
-            next.name = nts(buf)
+            next.name = nts(buf).rstrip("/")
         elif self.type == GNUTYPE_LONGLINK:
             next.linkname = nts(buf)