diff --git a/sru/almasru.py b/sru/almasru.py
index 2bf896d25a3f42b15e30875582c7538c9abc54dd..f089822cd5d2fcdcf6b8b89d3bbdb575be639df8 100644
--- a/sru/almasru.py
+++ b/sru/almasru.py
@@ -34,7 +34,7 @@ class NoRecord(SruException):
     pass
 
 
-class MultiRecord(SruException):
+class NotUnique(SruException):
     pass
 
 
@@ -112,7 +112,7 @@ class RecordRetriever:
         self._raise_error_no_match(num_recs)
         self._raise_error_sru(sru_xml)
 
-        num_pages = num_recs//10
+        num_pages = int(num_recs.text)//10
 
         xml_list = self._extract_marc_xml(sru_xml)
 
@@ -148,8 +148,8 @@ class RecordRetriever:
 
         if (num_recs is not None and
                 num_recs.text > '1'):
-            raise MultiRecord('More than one record found'
-                              'while exactly one was expected!')
+            raise NotUnique('More than one record found'
+                            'while exactly one was expected!')
 
     @staticmethod
     def _raise_error_no_match(num_recs: Element):