diff --git a/personal/q3k/shipstuck/main.go b/personal/q3k/shipstuck/main.go
index 0224c3d..f35b9f4 100644
--- a/personal/q3k/shipstuck/main.go
+++ b/personal/q3k/shipstuck/main.go
@@ -17,10 +17,7 @@
 )
 
 type vessel struct {
-	// No idea what these fields are, but they seem to be related to
-	// latitude/longitude. Use these to detect the stuckness of the ship.
-	GT int64 `json:"gt"`
-	DW int64 `json:"dw"`
+	Speed float64 `json:"ss"`
 }
 
 // get retrieves the current status of the ship - returns true if stack, false
@@ -48,7 +45,7 @@
 		return false, fmt.Errorf("Decode: %w", err)
 	}
 
-	if v.GT == 219079 && v.DW == 199489 {
+	if v.Speed == 0.0 {
 		return true, nil
 	} else {
 		glog.Infof("Freed! %+v", v)