diff --git a/src/store/index.js b/src/store/index.js
index 2b07d1dc1..670274c1a 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -919,6 +919,7 @@ export const getters = {
     externalParameterServiceZip: (state) => externalParameterState?.serviceZip,
     externalParameterEstimate: (state) => externalParameterState?.estimate,
     externalParameterSource: (state) => externalParameterState?.source,
+    isExternalParameter: (state) => externalParameterState?.isExternalParameter,
 };
 
 function getNonFalseValuesOfPropertyInArrayOfObjects(array, propertyName) {