diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2e55acbbc..ca911ffaf 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,6 +3,9 @@
 
 **Bug Fixes**
 
+* Add an 'E' to the first line of error messages from FixtureLookupErrorRepr.
+  Fixes (`#717`_). Thanks `@blueyed`_ for reporting.
+
 * Text documents without any doctests no longer appear as "skipped".
   Thanks `@graingert`_ for reporting and providing a full PR (`#1580`_).