diff --git a/api/src/engine/connectors/exareme/converters.ts b/api/src/engine/connectors/exareme/converters.ts
index 721c1bb5e091a7bba0c5eb8582c901ab4784c16f..72e62044aa2241b824b46d376ff8c14c31b35779 100644
--- a/api/src/engine/connectors/exareme/converters.ts
+++ b/api/src/engine/connectors/exareme/converters.ts
@@ -10,7 +10,7 @@ export const dataToGroup = (data: Hierarchy): Group => {
     id: data.code,
     label: data.label,
     groups: data.groups ? data.groups.map(dataToGroup) : [],
-    variables: [],
+    variables: data.variables ? data.variables.map(dataToVariable) : [],
   };
 };