diff --git a/src/calibre/ebooks/txt/textileml.py b/src/calibre/ebooks/txt/textileml.py
index 36dc9952d2..52454dbc96 100644
--- a/src/calibre/ebooks/txt/textileml.py
+++ b/src/calibre/ebooks/txt/textileml.py
@@ -447,10 +447,10 @@ class TextileMLizer(OEB2HTML):
         # Close all open tags.
         tags.reverse()
         for t in tags:
-            if tag in ('pre', 'ul', 'ol', 'li', 'table'):
-                if tag == 'pre':
+            if t in ('pre', 'ul', 'ol', 'li', 'table'):
+                if t == 'pre':
                     self.in_pre = False
-                elif tag in ('ul', 'ol'):
+                elif t in ('ul', 'ol'):
                     if self.list: self.list.pop()
                     if not self.list: text.append('\n')
             else:
diff --git a/src/calibre/gui2/actions/add.py b/src/calibre/gui2/actions/add.py
index 379e72822d..08385f4f3f 100644
--- a/src/calibre/gui2/actions/add.py
+++ b/src/calibre/gui2/actions/add.py
@@ -33,8 +33,8 @@ def get_filters():
             (_('LIT Books'), ['lit']),
             (_('MOBI Books'), ['mobi', 'prc', 'azw']),
             (_('Topaz books'), ['tpz','azw1']),
-            (_('Text books'), ['txt', 'rtf']),
-            (_('PDF Books'), ['pdf']),
+            (_('Text books'), ['txt', 'text', 'rtf']),
+            (_('PDF Books'), ['pdf', 'azw4']),
             (_('SNB Books'), ['snb']),
             (_('Comics'), ['cbz', 'cbr', 'cbc']),
             (_('Archives'), ['zip', 'rar']),