diff --git a/code/modules/projectiles/projectile.dm b/code/modules/projectiles/projectile.dm
index da27df93da897..14b310f74aefb 100644
--- a/code/modules/projectiles/projectile.dm
+++ b/code/modules/projectiles/projectile.dm
@@ -57,7 +57,6 @@
 	var/agony = 0
 	var/embed = FALSE // whether or not the projectile can embed itself in the mob
 	var/penetration_modifier = 0.2 //How likely this projectile is to embed or rupture artery
-	var/knockback = 0 //SIERRA
 	var/space_knockback = 0	//whether or not it will knock things back in space
 
 	var/hitscan = FALSE		// whether the projectile should be hitscan