diff --git a/docs/api.rst b/docs/api.rst
index 304d4801d..a15ecaefd 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -469,6 +469,10 @@ To collect, save and visualize the resources metrics from Cloud Watch
  endtime=<endtime>                  End time of the interval to be considered
                                     to retrieve the data
 
+ instance_id=<instance_id>          Manually provide instance ID in case Tibanna somehow
+                                    can't find the information. This field is not required
+                                    normally.
+
 
 cost
 ----
diff --git a/docs/commands.rst b/docs/commands.rst
index 33f86e2d0..6a131f372 100644
--- a/docs/commands.rst
+++ b/docs/commands.rst
@@ -473,6 +473,10 @@ To collect, save and visualize the resources metrics from Cloud Watch
   -B|--do-not-open-browser            Do not open the browser to visualize the metrics html
                                       after it has been created/updated
 
+  -i|--instance-id=<instance_id>      Manually provide instance ID in case Tibanna somehow
+                                      can't find the information. This field is not required normally.
+  
+
 cost
 ----