diff --git a/src/gameplay_style.rs b/src/gameplay_style.rs
index d28dd9e..02c0d66 100644
--- a/src/gameplay_style.rs
+++ b/src/gameplay_style.rs
@@ -50,7 +50,7 @@ pub enum JumpCalculation{
 pub enum JumpImpulse{
 	FromTime(Time),//jump time is invariant across mass and gravity changes
 	FromHeight(Planar64),//jump height is invariant across mass and gravity changes
-	FromDeltaV(Planar64),//jump velocity is invariant across mass and gravity changes
+	FromLinear(Planar64),//jump velocity is invariant across mass and gravity changes
 	FromEnergy(Planar64),// :)
 }
 //Jumping acts on dot(walks_state.normal,body.velocity)
@@ -66,7 +66,7 @@ impl JumpImpulse{
 		match self{
 			&JumpImpulse::FromTime(time)=>gravity.length()*(time/2),
 			&JumpImpulse::FromHeight(height)=>(gravity.length()*height*2).sqrt(),
-			&JumpImpulse::FromDeltaV(deltav)=>deltav,
+			&JumpImpulse::FromLinear(deltav)=>deltav,
 			&JumpImpulse::FromEnergy(energy)=>(energy*2/mass).sqrt(),
 		}
 	}