diff --git a/platformio/platforms/atmelavr.py b/platformio/platforms/atmelavr.py
index 907761b7..676cb010 100644
--- a/platformio/platforms/atmelavr.py
+++ b/platformio/platforms/atmelavr.py
@@ -26,7 +26,7 @@ class AtmelavrPlatform(BasePlatform):
 
         "framework-arduinoavr": {
             "path": join("frameworks", "arduino"),
-            "default": False
+            "default": True
         }
     }
 
diff --git a/platformio/platforms/timsp430.py b/platformio/platforms/timsp430.py
index f815dbf3..34a859b5 100644
--- a/platformio/platforms/timsp430.py
+++ b/platformio/platforms/timsp430.py
@@ -26,7 +26,7 @@ class Timsp430Platform(BasePlatform):
 
         "framework-energiamsp430": {
             "path": join("frameworks", "energia"),
-            "default": False
+            "default": True
         }
     }