diff --git a/player.go b/player.go
index 5e152cd..6ba81d5 100644
--- a/player.go
+++ b/player.go
@@ -66,6 +66,7 @@ func (p *player) recv() {
 
 			if msg.Probe != nil {
 				p.Robot.Probe = msg.Probe
+				p.Robot.ProbeResult = nil
 			} else {
 				p.Robot.Probe = nil
 			}
@@ -204,11 +205,11 @@ func (p *player) Tick(g *game) {
 		}
 	}
 
-	if p.Robot.Probe != nil {
+	if p.Robot.Probe != nil && p.Robot.ProbeResult == nil {
 		probe_vector := p.Robot.Probe.Sub(p.Robot.Position)
 		coll, pos, _ := p.checkCollisions(g, probe_vector)
 		if coll {
-			p.Robot.Probe = &pos
+			p.Robot.ProbeResult = &pos
 		}
 	}
 }
diff --git a/robot.go b/robot.go
index bd932b3..9b6e2b5 100644
--- a/robot.go
+++ b/robot.go
@@ -21,6 +21,7 @@ type Robot struct {
 	Collision     bool       `json:"collision"`
 	Hit           bool       `json:"hit"`
 	Probe         *v.Point2d `json:"probe"`
+	ProbeResult   *v.Point2d `json:"probe_result"`
 }
 
 // This is the subset of data we send to players about robots