diff --git a/platformio.ini b/platformio.ini
index ae7da7e1a..b92cf42ee 100755
--- a/platformio.ini
+++ b/platformio.ini
@@ -173,12 +173,12 @@ build_flags               = ${esp82xx_defaults.build_flags}
 ;build_flags               = ${core_2_3_0.build_flags}
 ;platform                  = ${core_2_4_2.platform}
 ;build_flags               = ${core_2_4_2.build_flags}
-platform                  = ${core_2_5_2.platform}
-build_flags               = ${core_2_5_2.build_flags}
+;platform                  = ${core_2_5_2.platform}
+;build_flags               = ${core_2_5_2.build_flags}
 ;platform                  = ${core_stage.platform}
 ;build_flags               = ${core_stage.build_flags}
-;platform                  = ${core_pre.platform}
-;build_flags               = ${core_pre.build_flags}
+platform                  = ${core_pre.platform}
+build_flags               = ${core_pre.build_flags}
 
 [common]
 framework                 = arduino