diff --git a/scripts/inventory-sensor.py b/scripts/inventory-sensor.py
index 1040cf0..eac8bb3 100755
--- a/scripts/inventory-sensor.py
+++ b/scripts/inventory-sensor.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import os
 import sys
@@ -43,7 +43,7 @@
 
     parser.add_argument(
         'command', metavar='COMMAND', type=str,
-        choices=valid_commands.keys(),
+        choices=list(valid_commands.keys()),
         help='Command to run.')
 
     args = parser.parse_args()
diff --git a/scripts/inventorysensor.mako.cpp b/scripts/inventorysensor.mako.cpp
index 0689662..11c9f4e 100644
--- a/scripts/inventorysensor.mako.cpp
+++ b/scripts/inventorysensor.mako.cpp
@@ -6,7 +6,7 @@
 #include "oemhandler.hpp"
 
 extern const ObjectIDMap invSensors = {
-% for key in sensorDict.iterkeys():
+% for key in sensorDict.keys():
    % if key:
 {"${key}",
     {