diff --git a/Quake/ls_main.cpp b/Quake/ls_main.cpp
index f89920beb..f4f4aa006 100644
--- a/Quake/ls_main.cpp
+++ b/Quake/ls_main.cpp
@@ -349,6 +349,26 @@ static int LS_value_sound_loopstart(lua_State* state)
 	return 0;
 }
 
+static int LS_MakeSoundSilent(lua_State* state)
+{
+	if (const sfxcache_t* const cachedsound = LS_GetCachedSoundFromUserData(state))
+	{
+		byte* const sounddata = const_cast<sfxcache_t*>(cachedsound)->data;
+		memset(sounddata, 0, cachedsound->length);
+
+		lua_pushboolean(state, true);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int LS_value_sound_makesilent(lua_State* state)
+{
+	lua_pushcfunction(state, LS_MakeSoundSilent);
+	return 1;
+}
+
 static int LS_value_sound_name(lua_State* state)
 {
 	if (const sfx_t* const sound = LS_GetSoundFromUserData(state))
@@ -429,6 +449,7 @@ static int LS_global_sounds_index(lua_State* state)
 		{ "framerate", LS_value_sound_framerate },
 		{ "framecount", LS_value_sound_framecount },
 		{ "loopstart", LS_value_sound_loopstart },
+		{ "makesilent", LS_value_sound_makesilent },
 		{ "name", LS_value_sound_name },
 		{ "samplesize", LS_value_sound_samplesize },
 		{ "size", LS_value_sound_size },