diff --git a/webapps/polygon_analysis_editor/app.js b/webapps/polygon_analysis_editor/app.js
index 66dc61f..6710454 100644
--- a/webapps/polygon_analysis_editor/app.js
+++ b/webapps/polygon_analysis_editor/app.js
@@ -636,7 +636,7 @@ function downloadCsv() {
         return;
     }
     const headers = Object.keys(overlapCsvData[0]);
-    const rows = overlapCsvData.map(row => headers.map(h => row[h]).join(';'));
+    const rows = overlapCsvData.map(row => headers.map(h => row[h]).join(','));
     const csvContent = [headers.join(',')].concat(rows).join('\n');
     downloadText(csvContent, `${originalFileName}_overlap_details.csv`);
 }