diff --git a/src/calibre/ebooks/txt/txtml.py b/src/calibre/ebooks/txt/txtml.py
index 63a5cdc8af..6957e53d43 100644
--- a/src/calibre/ebooks/txt/txtml.py
+++ b/src/calibre/ebooks/txt/txtml.py
@@ -26,12 +26,18 @@ BLOCK_TAGS = [
     'h5',
     'h6',
     'li',
+    'tr',
 ]
 
 BLOCK_STYLES = [
     'block',
 ]
 
+SPACE_TAGS = [
+    'span',
+    'td',
+]
+
 class TXTMLizer(object):
 
     def __init__(self, log):
@@ -170,6 +176,10 @@ class TXTMLizer(object):
             if not end.endswith(u'\n\n') and hasattr(elem, 'text') and elem.text != None and elem.text.strip() != '':
                 text.append(u'\n\n')
 
+        if tag in SPACE_TAGS:
+            if not end.endswith('u ') and hasattr(elem, 'text') and elem.text != None and elem.text.strip() != '':
+                text.append(u' ')
+
         # Process tags that contain text.
         if hasattr(elem, 'text') and elem.text != None and elem.text.strip() != '':
             text.append(elem.text)