diff --git a/nsight/transformation.py b/nsight/transformation.py
index 2c4a9bc..edb0b98 100644
--- a/nsight/transformation.py
+++ b/nsight/transformation.py
@@ -117,7 +117,7 @@ def convert_non_sortable_columns(dframe: pd.DataFrame) -> pd.DataFrame:
     )
 
     # Compute relative standard deviation as a percentage
-    agg_df["RelativeStdDevPct"] = (agg_df["StdDev"] / agg_df["AvgValue"]) * 100
+    agg_df["RelativeStdDevPct"] = (agg_df["StdDev"] / agg_df["AvgValue"].replace(0, np.nan)) * 100
 
     # Flag measurements as stable if relative stddev is less than 2%
     agg_df["StableMeasurement"] = agg_df["RelativeStdDevPct"] < 2.0