diff --git a/src/GamCommands.txt b/src/GamCommands.txt
index ba23b885..572ae18e 100644
--- a/src/GamCommands.txt
+++ b/src/GamCommands.txt
@@ -959,6 +959,7 @@ gam report <ActivityApplicationName> [todrive]
 	[(user all|<UserItem>)|(orgunit|org|ou <OrgUnitPath>)]
 	[start <Time>] [end <Time>]
 	[filter|filters <String>] [event <String>] [ip <String>]
+	[groupidfilter <String>]
 
 gam create admin <UserItem> <RoleItem> customer|(org_unit <OrgUnitItem>)
 gam delete admin <RoleAssignmentId>
diff --git a/src/gam/gapi/reports.py b/src/gam/gapi/reports.py
index febd319a..bc0c3051 100644
--- a/src/gam/gapi/reports.py
+++ b/src/gam/gapi/reports.py
@@ -285,7 +285,7 @@ def showReport():
     customerId = GC_Values[GC_CUSTOMER_ID]
     if customerId == MY_CUSTOMER:
         customerId = None
-    filters = parameters = actorIpAddress = startTime = endTime = eventName = orgUnitId = None
+    filters = parameters = actorIpAddress = groupIdFilter = startTime = endTime = eventName = orgUnitId = None
     tryDate = datetime.date.today().strftime(YYYYMMDD_FORMAT)
     to_drive = False
     userKey = 'all'
@@ -330,6 +330,9 @@ def showReport():
         elif myarg == 'ip':
             actorIpAddress = sys.argv[i + 1]
             i += 2
+        elif myarg == 'groupidfilter':
+            groupIdFilter = sys.argv[i + 1]
+            i += 2
         elif myarg == 'todrive':
             to_drive = True
             i += 1
@@ -489,7 +492,8 @@ def showReport():
                                         endTime=endTime,
                                         eventName=eventName,
                                         filters=filters,
-                                        orgUnitID=orgUnitId)
+                                        orgUnitID=orgUnitId,
+                                        groupIdFilter=groupIdFilter)
         if activities:
             titles = ['name']
             csvRows = []