diff --git a/firmware/config/boards/microrusefi/prepend.txt b/firmware/config/boards/microrusefi/prepend.txt
index c29b3dad98..8ff4927757 100644
--- a/firmware/config/boards/microrusefi/prepend.txt
+++ b/firmware/config/boards/microrusefi/prepend.txt
@@ -32,3 +32,5 @@
 #define ts_show_spi3_pins false
 
 #define show_microRusEFI_presets true
+
+#define LUA_SCRIPT_SIZE 10000