diff --git a/server/src/hardware/decoder/decoderchangeflags.hpp b/server/src/hardware/decoder/decoderchangeflags.hpp
index 7339cb34..e868b8c8 100644
--- a/server/src/hardware/decoder/decoderchangeflags.hpp
+++ b/server/src/hardware/decoder/decoderchangeflags.hpp
@@ -23,6 +23,8 @@
 #ifndef TRAINTASTIC_SERVER_HARDWARE_DECODER_DECODERCHANGEFLAGS_HPP
 #define TRAINTASTIC_SERVER_HARDWARE_DECODER_DECODERCHANGEFLAGS_HPP
 
+#include <type_traits>
+
 enum class DecoderChangeFlags
 {
   EmergencyStop = 1 << 0,