diff --git a/boto/ec2/connection.py b/boto/ec2/connection.py
index 9cddac8439..85e57c22bf 100644
--- a/boto/ec2/connection.py
+++ b/boto/ec2/connection.py
@@ -1378,9 +1378,12 @@ def modify_instance_attribute(self, instance_id, attribute, value,
         :return: Whether the operation succeeded or not
         """
         # Allow a bool to be passed in for value of disableApiTermination
-        bool_reqs = ('disableapitermination',
-                     'sourcedestcheck',
-                     'ebsoptimized')
+        bool_reqs = (
+            'disableapitermination',
+            'sourcedestcheck',
+            'ebsoptimized',
+            'rammonitoring',
+        )
         if attribute.lower() in bool_reqs:
             if isinstance(value, bool):
                 if value: