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-rw-r--r--scripts/pybootchartgui/pybootchartgui/draw.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
index 53324b9f8b..29eb7505bc 100644
--- a/scripts/pybootchartgui/pybootchartgui/draw.py
+++ b/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -271,7 +271,7 @@ def draw_chart(ctx, color, fill, chart_bounds, data, proc_tree, data_range):
# 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: