diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index b2373a7a0b..677687f3e0 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -1146,7 +1146,6 @@ enum
 	RTF_AFFECTSOURCE =			1,
 	RTF_NOIMPACTDAMAGE =		2,
 	RTF_NOTMISSILE =			4,
-	RTF_THRUSTZ =				8,
 };
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_RadiusThrust)
@@ -1168,7 +1167,6 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_RadiusThrust)
 		sourcenothrust = true;
 		self->target->flags2 &= ~MF2_NODMGTHRUST;
 	}
-	if (flags & RTF_THRUSTZ)	flags |= RADF_THRUSTZ;
 
 	P_RadiusAttack (self, self->target, force, distance, self->DamageType, flags | RADF_NODAMAGE, fullthrustdistance);
 	P_CheckSplash(self, distance);
diff --git a/wadsrc/static/actors/constants.txt b/wadsrc/static/actors/constants.txt
index 7b8e25a9fe..1922194edb 100644
--- a/wadsrc/static/actors/constants.txt
+++ b/wadsrc/static/actors/constants.txt
@@ -178,7 +178,7 @@ const int XF_NOTMISSILE = 4;
 const int RTF_AFFECTSOURCE = 1;
 const int RTF_NOIMPACTDAMAGE = 2;
 const int RTF_NOTMISSILE = 4;
-const int RTF_THRUSTZ = 8;
+const int RTF_THRUSTZ = 16;
 
 // Flags for A_Blast
 const int BF_USEAMMO = 1;