diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index d601d558..86217e08 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -926,8 +926,10 @@ def interactive_forcecurve(theworkouts,workstrokesonly=True,plottype='scatter'):
                      datapoints['peakforce'].push(peakforce[i])
                    }
                    if (plottype=='line') {
-                     multilines['xs'].push(multilinesx[i])
-                     multilines['ys'].push(multilinesy[i])
+                     xs = [c[i],slip[i],peakforceangle[i],wash[i],finish[i]]
+                     ys = [0,thresholdforce,peakforce[i],thresholdforce,finish[i]]
+                     multilines['xs'].push(xs)
+                     multilines['ys'].push(ys)
                    }
                    catchav += c[i]
                    finishav += finish[i]