diff --git a/game/shared/shareddefs.h b/game/shared/shareddefs.h
index d2da8f6b..2a9e9919 100644
--- a/game/shared/shareddefs.h
+++ b/game/shared/shareddefs.h
@@ -695,6 +695,7 @@ struct EmitSound_t
 		m_SoundLevel( SNDLVL_NONE ),
 		m_nFlags( 0 ),
 		m_nPitch( PITCH_NORM ),
+		m_nSpecialDSP( 0 ),
 		m_pOrigin( 0 ),
 		m_flSoundTime( 0.0f ),
 		m_pflSoundDuration( 0 ),
@@ -715,6 +716,7 @@ struct EmitSound_t
 	soundlevel_t				m_SoundLevel;
 	int							m_nFlags;
 	int							m_nPitch;
+	int							m_nSpecialDSP;
 	const Vector				*m_pOrigin;
 	float						m_flSoundTime; ///< NOT DURATION, but rather, some absolute time in the future until which this sound should be delayed
 	float						*m_pflSoundDuration;