diff --git a/api/src/engine/connectors/exareme/transformations.ts b/api/src/engine/connectors/exareme/transformations.ts
index 194ae2e4851b94e6e796a7ed1a5753cbee2d1e90..8ecf464f696b5e3e719e3817586b4570bfdfecdd 100644
--- a/api/src/engine/connectors/exareme/transformations.ts
+++ b/api/src/engine/connectors/exareme/transformations.ts
@@ -144,7 +144,8 @@ export const dataROCToLineResult = jsonata(`
             "y": data.series.data.$[1],
             "type": 0
         }
-    ]
+    ],
+    "hasBisector": true
 })
 `);
 
diff --git a/api/src/engine/models/result/line-chart-result.model.ts b/api/src/engine/models/result/line-chart-result.model.ts
index 85ea4ff66e9780a1cb01de9ea68621b6486e9de5..c08e590d4305a4769f48f4d6f41892ae0b76b54f 100644
--- a/api/src/engine/models/result/line-chart-result.model.ts
+++ b/api/src/engine/models/result/line-chart-result.model.ts
@@ -51,4 +51,7 @@ export class LineChartResult extends Result {
 
   @Field(() => [LineResult])
   lines: LineResult[];
+
+  @Field({ nullable: true, defaultValue: false })
+  hasBisector?: boolean;
 }
diff --git a/api/src/schema.gql b/api/src/schema.gql
index 8265eb01a39457cb2d9420de4625a1b937ac26d7..61f22d7158f99c268aff1a71e37da107c692935a 100644
--- a/api/src/schema.gql
+++ b/api/src/schema.gql
@@ -210,6 +210,7 @@ type LineChartResult {
   xAxis: ChartAxis
   yAxis: ChartAxis
   lines: [LineResult!]!
+  hasBisector: Boolean
 }
 
 type BarChartResult {