diff --git a/boards/m5stack-fire.json b/boards/m5stack-fire.json
index 7f319ca..d2cf137 100644
--- a/boards/m5stack-fire.json
+++ b/boards/m5stack-fire.json
@@ -7,6 +7,7 @@
     "flash_mode": "dio",
     "ldscript": "esp32_out.ld",
     "mcu": "esp32",
+    "partitions": "default_16MB.csv",
     "variant": "m5stack_fire"
   },
   "connectivity": [
@@ -22,7 +23,7 @@
   "name": "M5Stack FIRE",
   "upload": {
     "flash_size": "16MB",
-    "maximum_ram_size": 327680,
+    "maximum_ram_size": 6553600,
     "maximum_size": 16777216,
     "protocol": "esptool",
     "require_upload_port": true,
diff --git a/boards/ttgo-t-beam.json b/boards/ttgo-t-beam.json
index 92d23b5..85a038d 100644
--- a/boards/ttgo-t-beam.json
+++ b/boards/ttgo-t-beam.json
@@ -1,7 +1,7 @@
 {
   "build": {
     "core": "esp32",
-    "extra_flags": "-DARDUINO_T-Beam",
+    "extra_flags": "-DARDUINO_T_Beam",
     "f_cpu": "240000000L",
     "f_flash": "40000000L",
     "flash_mode": "dio",