diff --git a/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java b/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
index e3ba8fa..fe978ed 100644
--- a/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
+++ b/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
@@ -47,10 +47,6 @@ public interface KnockbackProfile {
 
     void setName(String name);
 
-    void setFriction(double friction);
-
-    void setVertical(double vertical);
-
     void setHorizontal(double horizontal);
 
     void setVerticalLimit(double verticalLimit);