diff --git a/firmware/config/stm32f4ems/efifeatures.h b/firmware/config/stm32f4ems/efifeatures.h
index 7d8bf53966..0bacda3160 100644
--- a/firmware/config/stm32f4ems/efifeatures.h
+++ b/firmware/config/stm32f4ems/efifeatures.h
@@ -278,9 +278,7 @@
 	// small memory F40x can't fit perf trace
 	#define ENABLE_PERF_TRACE FALSE
 
-	#ifndef LUA_USER_HEAP
 	#define LUA_USER_HEAP 25000
-	#endif
 #endif
 
 #ifndef EFI_LUA