diff --git a/platformio.ini b/platformio.ini
index bad647bfa..f54ab582f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -23,6 +23,8 @@ default_envs = tbeam ; Note: the github actions CI test build can't yet build NR
 
 [env]
 
+framework = arduino
+
 ; customize the partition table
 ; http://docs.platformio.org/en/latest/platforms/espressif32.html#partition-tables
 board_build.partitions = partition-table.csv
@@ -78,7 +80,6 @@ lib_deps =
 ; Common settings for ESP targes, mixin with extends = esp32_base
 [esp32_base]
 platform = espressif32
-framework = arduino
 src_filter = 
   ${env.src_filter} -<nrf52/>
 upload_speed = 921600
@@ -133,7 +134,6 @@ build_flags =
 ; For more details see my post in the forum.
 [env:cubecellplus]
 platform = https://github.com/HelTecAutomation/platform-asrmicro650x.git ; we use top-of-tree because stable version has too many bugs - asrmicro650x
-framework = arduino
 board = cubecell_board_plus
 ; FIXME, bug in cubecell arduino - they are supposed to set ARDUINO
 build_flags = ${env.build_flags} -DARDUINO=100 -Isrc/cubecell
@@ -143,7 +143,6 @@ src_filter =
 ; Common settings for NRF52 based targets
 [nrf52_base]
 platform = nordicnrf52
-framework = arduino
 debug_tool = jlink
 build_type = debug ; I'm debugging with ICE a lot now
 ; note: liboberon provides the AES256 implementation for NRF52 (though not using the hardware acceleration of the NRF52840 - FIXME)