diff --git a/HISTORY.rst b/HISTORY.rst
index 5f7e3aed..d3190628 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,13 @@
 Release History
 ---------------
 
+1.16.3 (2021-02-08)
++++++++++++++++++++
+
+**Bug Fixes**
+
+- Minor fix when combining data and market stream strategies
+
 1.16.2 (2021-02-05)
 +++++++++++++++++++
 
diff --git a/flumine/__version__.py b/flumine/__version__.py
index bbd9662e..31ba5d7a 100644
--- a/flumine/__version__.py
+++ b/flumine/__version__.py
@@ -1,6 +1,6 @@
 __title__ = "flumine"
 __description__ = "Betfair trading framework"
 __url__ = "https://github.com/liampauling/flumine"
-__version__ = "1.16.2"
+__version__ = "1.16.3"
 __author__ = "Liam Pauling"
 __license__ = "MIT"
diff --git a/flumine/markets/market.py b/flumine/markets/market.py
index 036c78dc..d350458a 100644
--- a/flumine/markets/market.py
+++ b/flumine/markets/market.py
@@ -29,7 +29,7 @@ def __init__(
         self.blotter = Blotter(market_id)
 
     def __call__(self, market_book: MarketBook):
-        if market_book.version != self.market_book.version:
+        if self.market_book and market_book.version != self.market_book.version:
             self.update_market_catalogue = True
         self.market_book = market_book