diff --git a/src/helpers/legends.js b/src/helpers/legends.js
index 49b3a90..b414889 100644
--- a/src/helpers/legends.js
+++ b/src/helpers/legends.js
@@ -119,5 +119,24 @@ if (typeof strokeWidth == "object" && strokeWidth.values != undefined && strokeW
 
 }
 
+if (typeof strokeWidth == "object" && strokeWidth.values != undefined && strokeWidth.type == "quali") {
+  legthicknessquali(selection, {
+
+    x: strokeWidth.leg_x,
+    y: strokeWidth.leg_y,
+    categories:thickness(geojson.features, strokeWidth).categories,
+    sizes: thickness(geojson.features, strokeWidth).sizes,
+    w: strokeWidth.leg_w,
+    title: strokeWidth.leg_title ?? "Catégories",
+    fontSize: strokeWidth.leg_fontSize,
+    fontSize2: strokeWidth.leg_fontSize2,
+    stroke: strokeWidth.stroke,
+    strokeOpacity: strokeWidth.strokeOpacity,
+    txtcol: strokeWidth.leg_txtcol
+
+});
+
+}
+
 
 }
diff --git a/src/helpers/thickness.js b/src/helpers/thickness.js
index 24ca75a..22f63a9 100644
--- a/src/helpers/thickness.js
+++ b/src/helpers/thickness.js
@@ -58,17 +58,17 @@ export function thickness(data, _) {
   // Qualitative data (linear scale)
 
   if (typeof _ != "number" && typeof _ != "string" && type == "quali") {
-    const values = _.values;
+    const categories = _.categories;
     const k = _.k ?? 10;
     const sizes = _.sizes ?? d3.quantize(d3.interpolate(1, k), values.length);
 
     return {
       type: type,
-      values: values,
+      categories: categories,
       sizes: sizes,
       getthickness: d3
         .scaleOrdinal()
-        .domain(values)
+        .domain(categories)
         .range(sizes)
         .unknown("none")
     };