diff --git a/web/app/sketcher/fetchers.js b/web/app/sketcher/fetchers.js
index 9525163e..1f534368 100644
--- a/web/app/sketcher/fetchers.js
+++ b/web/app/sketcher/fetchers.js
@@ -84,6 +84,10 @@ export function line(objs) {
   throw "Illegal Argument. Constraint requires a line."
 }
 
+export function lines(objs) {
+  return objs.filter(o => o._class == 'TCAD.TWO.Segment')
+}
+
 export function arcCircAndLine(objs) {
 
   var arc = null;
diff --git a/web/app/sketcher/parametric.js b/web/app/sketcher/parametric.js
index 8e6c6b18..db7788c2 100644
--- a/web/app/sketcher/parametric.js
+++ b/web/app/sketcher/parametric.js
@@ -207,8 +207,12 @@ ParametricManager.prototype.horizontal = function(objs) {
 };
 
 ParametricManager.prototype.parallel = function(objs) {
-  var lines = fetch.twoLines(objs);
-  this.add(new Constraints.Parallel(lines[0], lines[1]));
+  const lines = fetch.lines(objs);
+  const constraints = [];
+  for (let i = 1; i < lines.length; i++) {
+    constraints.push(new Constraints.Parallel(lines[i - 1], lines[i]));
+  }
+  this.addAll(constraints);
 };
 
 ParametricManager.prototype.perpendicular = function(objs) {