diff --git a/platformio.ini b/platformio.ini
index d3daf03f..eea12344 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -909,7 +909,7 @@ platform = ${esp32.platformV4}
 platform_packages = ${esp32.platformV4_packages}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flagsV4} ${common_mm.build_flags_S}
-  -Wno-misleading-indentation -Wno-format-truncation
+  -Wno-misleading-indentation -Wno-format-truncation -D WLED_ENABLE_DMX_INPUT
 lib_deps = ${esp32.lib_depsV4} ${common_mm.lib_deps_S}
 board_build.partitions = ${esp32.default_partitions}
 board_build.f_flash = 80000000L ; use full 80MHz speed for flash (default = 40Mhz)