diff --git a/Build/Compilers/ZDoom/acc.exe b/Build/Compilers/ZDoom/acc.exe
index 4c0e8227..87b7a64b 100644
Binary files a/Build/Compilers/ZDoom/acc.exe and b/Build/Compilers/ZDoom/acc.exe differ
diff --git a/Build/Compilers/ZDoom/zdefs.acs b/Build/Compilers/ZDoom/zdefs.acs
index d9250432..73df94b1 100644
--- a/Build/Compilers/ZDoom/zdefs.acs
+++ b/Build/Compilers/ZDoom/zdefs.acs
@@ -698,6 +698,24 @@
 #define ATTN_IDLE				1.001
 #define ATTN_STATIC				3.0		// dimish very rapidly with distance
 
+// Identifiers for PlayActorSound
+
+#define SOUND_See				0
+#define SOUND_Attack			1
+#define SOUND_Pain				2
+#define SOUND_Death				3
+#define SOUND_Active			4
+#define SOUND_Use				5
+#define SOUND_Bounce			6
+#define SOUND_WallBounce		7
+#define SOUND_CrushPain			8
+#define SOUND_Howl				9
+
+// Flags for SpawnDecal
+
+#define SDF_ABSANGLE			1
+#define SDF_PERMANENT			2
+
 // Actor pointer selectors
 
 #DEFINE	AAPTR_DEFAULT 0
diff --git a/Build/Compilers/ZDoom/zspecial.acs b/Build/Compilers/ZDoom/zspecial.acs
index 7518d444..ab1e0779 100644
--- a/Build/Compilers/ZDoom/zspecial.acs
+++ b/Build/Compilers/ZDoom/zspecial.acs
@@ -314,6 +314,8 @@ special
 	-69:GetWeapon(0),
 	-70:SoundVolume(3),
 	-71:PlayActorSound(2,6),
+	-72:SpawnDecal(2,6),
+	-73:CheckFont(1),
 	
 	// Zandronum's
 	-100:ResetMap(0),