diff --git a/band-plan.html b/band-plan.html
index 70a3ec1..64754d6 100644
--- a/band-plan.html
+++ b/band-plan.html
@@ -258,7 +258,7 @@ div>label {
 						// list like cw, narrow will be split to two entries
 						column.formatter = function(cell) {
 							let f = String(cell.getField()).toLowerCase().replace(/[\W]+/g, " ").replaceAll(" ", "_");
-							let v = String(cell.getValue()).toLowerCase().replace(/[^\w,]+/g, " ").replaceAll(" ", "_");
+							let v = String(cell.getValue()).toLowerCase().replaceAll("+", "_plus_").replace(/[^\w,]+/g, " ").replaceAll(" ", "_");
 							v.split(",").forEach((s) => {
 								cell.getElement().classList.add("cell-" + f + "-" + s.replace(/^_+|_+$/g, ""));
 							});
@@ -275,7 +275,7 @@ div>label {
 				rowFormatter: function(row){
 					for (const [key, value] of Object.entries(row.getData())) {
 						let k = String(key).toLowerCase().replace(/[\W]+/g, " ").replaceAll(" ", "_");
-						let v = String(value).toLowerCase().replace(/[^\w,]+/g, " ").replaceAll(" ", "_");
+						let v = String(value).toLowerCase().replaceAll("+", "_plus_").replace(/[^\w,]+/g, " ").replaceAll(" ", "_");
 						v.split(",").forEach((s) => {
 							row.getElement().classList.add("row-" + k + "-" + s.replace(/^_+|_+$/g, ""));
 						});