diff --git a/platformio.ini b/platformio.ini
index fbdf1e02..84c0b56b 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -35,6 +35,7 @@ build_flags = -Wno-missing-field-initializers
   -Isrc -Isrc/mesh -Isrc/gps -Isrc/buzz -Wl,-Map,.pio/build/output.map 
   -DUSE_THREAD_NAMES
   -DTINYGPS_OPTION_NO_CUSTOM_FIELDS
+  -DPB_ENABLE_MALLOC=1
 
 monitor_speed = 921600