diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index daed40bd..de97b577 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -4793,7 +4793,7 @@ def interactive_flexchart_stacked(id,r,xparam='time',
     plot1.line('x1','y1',source=source,color=palette2[1])
     plot2.line('x1','y2',source=source,color=palette2[3])
     plot3.line('x1','y3',source=source,color=palette2[0])
-    plot4.line('x1','y4',source=source,color=palette2[3])
+    plot4.line('x1','y4',source=source,color=palette2[2])
 
     layout = layoutcolumn([
         plot1,