diff --git a/src/structure/structure_params.ts b/src/structure/structure_params.ts
index c70a06b90d616907c957a9cabbab1f41b0636565..42f63986658302a532d7165fb9b7a0eee2f9b0ca 100644
--- a/src/structure/structure_params.ts
+++ b/src/structure/structure_params.ts
@@ -44,17 +44,17 @@ export class StructureParams extends ParamsEquation {
         this.addParamDefinition(this.Q);
         this.ZDV = new ParamDefinition(this, "ZDV", ParamDomainValue.ANY, rZDV, ParamFamily.ELEVATIONS);
         this.addParamDefinition(this.ZDV);
-        this.Z1 = new ParamDefinition(this, "Z1", ParamDomainValue.ANY, rZ1, ParamFamily.ELEVATIONS, false);
+        this.Z1 = new ParamDefinition(this, "Z1", ParamDomainValue.ANY, rZ1, undefined, false);
         this.addParamDefinition(this.Z1);
-        this.Z2 = new ParamDefinition(this, "Z2", ParamDomainValue.ANY, rZ2, ParamFamily.ELEVATIONS, false);
+        this.Z2 = new ParamDefinition(this, "Z2", ParamDomainValue.ANY, rZ2, undefined, false);
         this.addParamDefinition(this.Z2);
         this.h1 = new ParamDefinition(this, "h1", ParamDomainValue.POS_NULL,
-            Math.max(0, this.Z1.v - this.ZDV.v), ParamFamily.HEIGHTS, false);
+            Math.max(0, this.Z1.v - this.ZDV.v), undefined, false);
         this.addParamDefinition(this.h1);
         this.h2 = new ParamDefinition(this, "h2", ParamDomainValue.POS_NULL,
-            Math.max(0, this.Z2.v - this.ZDV.v), ParamFamily.HEIGHTS, false);
+            Math.max(0, this.Z2.v - this.ZDV.v), undefined, false);
         this.addParamDefinition(this.h2);
-        this.W = new ParamDefinition(this, "W", ParamDomainValue.POS_NULL, rW, ParamFamily.WIDTHS, false);
+        this.W = new ParamDefinition(this, "W", ParamDomainValue.POS_NULL, rW, undefined, false);
         this.addParamDefinition(this.W);
         // hide params
         this.Pr.visible = false;