diff --git a/pynuodb/exception.py b/pynuodb/exception.py
index ae18820..e1497d2 100644
--- a/pynuodb/exception.py
+++ b/pynuodb/exception.py
@@ -87,10 +87,10 @@ def db_error_handler(error_code, error_string):
     error_code_string = protocol.lookup_code(error_code)
     if error_code in protocol.DATA_ERRORS:
         raise DataError(error_code_string + ': ' + error_string)
-	elif error_code in protocol.OPERATIONAL_ERRORS:
+    elif error_code in protocol.OPERATIONAL_ERRORS:
         raise OperationalError(error_code_string + ': ' + error_string)
-	elif error_code in protocol.INTEGRITY_ERRORS:
-		raise IntegrityError(error_code_string + ': ' + error_string)
+    elif error_code in protocol.INTEGRITY_ERRORS:
+        raise IntegrityError(error_code_string + ': ' + error_string)
     elif error_code in protocol.INTERNAL_ERRORS:
         raise InternalError(error_code_string + ': ' + error_string)
     elif error_code in protocol.PROGRAMMING_ERRORS: