diff --git a/zdefs.acs b/zdefs.acs
index 4adc4c8..73df94b 100644
--- a/zdefs.acs
+++ b/zdefs.acs
@@ -711,6 +711,10 @@
 #define SOUND_CrushPain			8
 #define SOUND_Howl				9
 
+// Flags for SpawnDecal
+
+#define SDF_ABSANGLE			1
+#define SDF_PERMANENT			2
 
 // Actor pointer selectors
 
diff --git a/zspecial.acs b/zspecial.acs
index 7518d44..b13a464 100644
--- a/zspecial.acs
+++ b/zspecial.acs
@@ -314,6 +314,7 @@ special
 	-69:GetWeapon(0),
 	-70:SoundVolume(3),
 	-71:PlayActorSound(2,6),
+	-72:SpawnDecal(2,6),
 	
 	// Zandronum's
 	-100:ResetMap(0),