diff --git a/libraries/AP_Scripting/lua/src/luaconf.h b/libraries/AP_Scripting/lua/src/luaconf.h
index 9eeeea69e2..90069f4bc9 100644
--- a/libraries/AP_Scripting/lua/src/luaconf.h
+++ b/libraries/AP_Scripting/lua/src/luaconf.h
@@ -758,7 +758,7 @@
 #if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE
 #define LUAL_BUFFERSIZE		8192
 #else
-#define LUAL_BUFFERSIZE   ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))
+#define LUAL_BUFFERSIZE   ((int)(0x20 * sizeof(void*) * sizeof(lua_Integer)))
 #endif
 
 /* }================================================================== */