diff --git a/openlp/core/lib/renderer.py b/openlp/core/lib/renderer.py
index 3c1bb9be8..bf7319da0 100644
--- a/openlp/core/lib/renderer.py
+++ b/openlp/core/lib/renderer.py
@@ -440,21 +440,41 @@ class Renderer(object):
         log.debug(u'_paginate_slide_words - End')
         return formatted
 
-    def _get_start_tags(self, text):
-        missing_raw_tags = []
-        missing_html_tags = []
+    def _get_start_tags(self, raw_text):
+        """
+        Tests the given text for not closed formatting tags and returns a tuple
+        consisting of two unicode strings::
+
+            (u'{st}{r}', u'<strong><span style="-webkit-text-fill-color:red">')
+
+        The returned strings can be prepended to the next slide. The first
+        unicode string are OpenLP's formatting tags and the second unicode
+        string the html formatting tags.
+
+        ``raw_text``
+            The text to test. The text must **not** contain html tags, only
+            OpenLP formatting tags are allowed.
+        """
+        raw_tags = []
+        html_tags = []
         for tag in FormattingTags.get_html_tags():
-            if tag[u'start html'] == u'<br>':
+            if tag[u'start tag'] == u'{br}':
                 continue
-            if tag[u'start html'] in text:
-                missing_raw_tags.append((tag[u'start tag'], text.find(tag[u'start html'])))
-                missing_html_tags.append((tag[u'start html'], text.find(tag[u'start html'])))
-            elif tag[u'start tag'] in text:
-                missing_raw_tags.append((tag[u'start tag'], text.find(tag[u'start tag'])))
-                missing_html_tags.append((tag[u'start html'], text.find(tag[u'start tag'])))
-        missing_raw_tags.sort(key=lambda tag: tag[1])
-        missing_html_tags.sort(key=lambda tag: tag[1])
-        return u''.join(missing_raw_tags), u''.join(missing_html_tags)
+            if tag[u'start tag'] in raw_text and not \
+                tag[u'end tag'] in raw_text:
+                raw_tags.append(
+                    (tag[u'start tag'], raw_text.find(tag[u'start tag'])))
+                html_tags.append(
+                    (tag[u'start html'], raw_text.find(tag[u'start tag'])))
+        # Sort the lists, so that the tags which were opened first on the first
+        # slide (the text we are checking) will be opened first on the next
+        # slide as well.
+        raw_tags.sort(key=lambda tag: tag[1])
+        html_tags.sort(key=lambda tag: tag[1])
+        # Remove the indexes.
+        raw_tags = [tag[0] for tag in raw_tags]
+        html_tags = [tag[0] for tag in html_tags]
+        return u''.join(raw_tags), u''.join(html_tags)
 
     def _binary_chop(self, formatted, previous_html, previous_raw, html_list,
         raw_list, separator, line_end):