diff --git a/platformio.ini b/platformio.ini
index 059446b1..7500c225 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -1347,6 +1347,7 @@ build_flags = ${common.build_flags} ${esp32s3.build_flags} -Wno-misleading-inden
   ; -D WLED_DISABLE_MQTT ;   RAM 216 bytes; FLASH 16496 bytes
   ; -D WLED_DISABLE_HUESYNC ;RAM 122 bytes; FLASH 6308 bytes
   ; -D WLED_DISABLE_INFRARED ;RAM 136 bytes; FLASH 24492 bytes
+  -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON -D WLED_USE_PSRAM ;; un-comment in case your board supports PSRAM
   -D LEDPIN=4
   -D STATUSLED=39
   -D BTNPIN=48
@@ -1399,7 +1400,7 @@ build_flags = ${common.build_flags} ${esp32s2.build_flags}
   -D WLED_DISABLE_ADALIGHT     ;; disables serial protocols when using CDC USB (Serial RX will receive junk commands, unless its pulled down by resistor)
   -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0
   -D SERVERNAME='"WLED-S2"'
-  -D WLED_USE_PSRAM
+  -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON -D WLED_USE_PSRAM
   -D WLED_DISABLE_LOXONE  ;;  FLASH 1272 bytes
   -D WLED_DISABLE_HUESYNC ;;   RAM 122 bytes; FLASH  6308 bytes
   -D WLED_DISABLE_ALEXA ;;     RAM 116 bytes; FLASH 13524 bytes
@@ -1449,7 +1450,7 @@ build_flags = ${common.build_flags} ${esp32s2.build_flags}
   -DARDUINO_USB_CDC_ON_BOOT=0
   -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0
   -D WLED_DISABLE_ADALIGHT     ;; disables serial protocols, as the board onl has CDC USB
-  -D WLED_USE_PSRAM -DBOARD_HAS_PSRAM
+  -DBOARD_HAS_PSRAM -D WLED_USE_PSRAM_JSON -D WLED_USE_PSRAM
   -D WLED_DISABLE_INFRARED ;; save flash space
   -D WLED_DISABLE_ALEXA    ;; save flash space
   -D WLED_DISABLE_HUESYNC  ;; save flash space
diff --git a/wled00/const.h b/wled00/const.h
index 690047b0..7d6264d9 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -408,7 +408,11 @@
   #define JSON_BUFFER_SIZE 10240
 #else
  #if defined(BOARD_HAS_PSRAM) && (defined(WLED_USE_PSRAM) || defined(WLED_USE_PSRAM_JSON))
-  #define JSON_BUFFER_SIZE 60000
+  #if defined(ARDUINO_ARCH_ESP32S2) || defined(ARDUINO_ARCH_ESP32C3)
+  #define JSON_BUFFER_SIZE 48000 // WLEDMM
+  #else
+  #define JSON_BUFFER_SIZE 60000 // WLEDMM
+  #endif
  #else
   #define JSON_BUFFER_SIZE 24576
  #endif