diff --git a/code/modules/projectiles/projectile.dm b/code/modules/projectiles/projectile.dm
index de48d8c79be2..52891ef9d70b 100644
--- a/code/modules/projectiles/projectile.dm
+++ b/code/modules/projectiles/projectile.dm
@@ -799,7 +799,8 @@
 			if(X.hivenumber == hivenumber)
 				return FALSE
 
-		if(mob_size >= MOB_SIZE_BIG) . += 10
+		if(mob_size == MOB_SIZE_SMALL) . -= 10
+		else if(mob_size >= MOB_SIZE_BIG) . += 10
 		if(evasion > 0)
 			. -= evasion