1 files changed, 5 insertions, 2 deletions

diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
index 53324b9f8b..fc708b55c3 100644
--- a/scripts/pybootchartgui/pybootchartgui/draw.py
+++ b/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -267,11 +267,14 @@ def draw_chart(ctx, color, fill, chart_bounds, data, proc_tree, data_range):
     # avoid divide by zero
     if max_y == 0:
         max_y = 1.0
-    xscale = float (chart_bounds[2]) / (max_x - x_shift)
+    if (max_x - x_shift):
+        xscale = float (chart_bounds[2]) / (max_x - x_shift)
+    else:
+        xscale = float (chart_bounds[2])
     # If data_range is given, scale the chart so that the value range in
     # data_range matches the chart bounds exactly.
     # Otherwise, scale so that the actual data matches the chart bounds.
-    if data_range:
+    if data_range and (data_range[1] - data_range[0]):
         yscale = float(chart_bounds[3]) / (data_range[1] - data_range[0])
         ybase = data_range[0]
     else: