diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index 2bfc47f24..d242d4e71 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -5618,7 +5618,7 @@ static INT16 Consistancy(void)
 			if (TypeIsNetSynced(mo->type) == false)
 				continue;
 
-			if (mo->flags & (MF_SPECIAL | MF_SOLID | MF_PUSHABLE | MF_BOSS | MF_MISSILE | MF_SPRING | MF_MONITOR | MF_FIRE | MF_ENEMY | MF_PAIN | MF_STICKY))
+			if (mo->flags & (MF_SPECIAL | MF_SOLID | MF_PUSHABLE | MF_BOSS | MF_MISSILE | MF_SPRING | MF_MONITOR | MF_FIRE | MF_ENEMY | MF_PAIN))
 			{
 				ret -= mo->type;
 				ret += mo->x;
diff --git a/src/deh_tables.c b/src/deh_tables.c
index 72141e85a..f7de4fa57 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -5993,7 +5993,7 @@ const char *const MOBJFLAG_LIST[] = {
 	"ENEMY",
 	"SCENERY",
 	"PAIN",
-	"STICKY",
+	"\x01", // free: 1<<23 (name un-matchable)
 	"APPLYTERRAIN",
 	"NOCLIPTHING",
 	"GRENADEBOUNCE",
diff --git a/src/p_mobj.c b/src/p_mobj.c
index da1b58d8e..51ac3380e 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1725,25 +1725,6 @@ void P_XYMovement(mobj_t *mo)
 			P_ExplodeMissile(mo);
 			return;
 		}
-		else if (mo->flags & MF_STICKY)
-		{
-			S_StartSound(mo, mo->info->activesound);
-			mo->momx = mo->momy = mo->momz = 0; //Full stop!
-			mo->flags |= MF_NOGRAVITY; //Stay there!
-			mo->flags &= ~MF_STICKY; //Don't check again!
-
-			// Check for hit against sky here
-			if (P_CheckSkyHit(mo))
-			{
-				// Hack to prevent missiles exploding
-				// against the sky.
-				// Does not handle sky floors.
-				// Check frontsector as well.
-
-				P_RemoveMobj(mo);
-				return;
-			}
-		}
 		else
 		{
 			boolean walltransferred = false;
diff --git a/src/p_mobj.h b/src/p_mobj.h
index 382bfcd9e..d15269bb7 100644
--- a/src/p_mobj.h
+++ b/src/p_mobj.h
@@ -149,8 +149,7 @@ typedef enum
 	MF_SCENERY          = 1<<21,
 	// Painful (shit hurts).
 	MF_PAIN             = 1<<22,
-	// This mobj will stick to any surface or solid object it touches.
-	MF_STICKY           = 1<<23,
+	// free: 1<<23
 	// Object uses terrain effects. (Overlays, footsteps, etc)
 	MF_APPLYTERRAIN     = 1<<24,
 	// for chase camera, don't be blocked by things (partial clipping)
diff --git a/src/r_bbox.c b/src/r_bbox.c
index 3654565a8..2e0b345c2 100644
--- a/src/r_bbox.c
+++ b/src/r_bbox.c
@@ -240,7 +240,7 @@ static boolean is_tangible (mobj_t *thing)
 	// These objects probably do nothing! :D
 	if ((thing->flags & (MF_SPECIAL|MF_SOLID|MF_SHOOTABLE
 					|MF_PUSHABLE|MF_BOSS|MF_MISSILE|MF_SPRING
-					|MF_MONITOR|MF_ENEMY|MF_PAIN|MF_STICKY
+					|MF_MONITOR|MF_ENEMY|MF_PAIN
 					|MF_PICKUPFROMBELOW)) == 0U)
 	{
 		return false;