diff --git a/src/main/resources/alma/index-config.json b/src/main/resources/alma/index-config.json
index f82798a55..7ea2b8fb3 100644
--- a/src/main/resources/alma/index-config.json
+++ b/src/main/resources/alma/index-config.json
@@ -539,6 +539,17 @@
             },
             "creatorOfWork": {
               "type": "text"
+            },
+            "language": {
+              "properties": {
+                "id": {
+                  "type": "keyword"
+                },
+                "label": {
+                  "type": "text",
+                  "index": false
+                }
+              }
             }
           }
         },
diff --git a/web/test/tests/IndexIntegrationTest.java b/web/test/tests/IndexIntegrationTest.java
index 272ba809a..f32043bb6 100644
--- a/web/test/tests/IndexIntegrationTest.java
+++ b/web/test/tests/IndexIntegrationTest.java
@@ -132,7 +132,8 @@ public static Collection<Object[]> data() {
 			{ "contribution.agent.altLabel.digibib:Nemačke", /*->*/ 1 },
 			{ "contribution.agent.altLabel.digibib:Nemack", /*->*/ 1 },
 			{ "contribution.agent.altLabel.digibib_unstemmed:Nemačke", /*->*/ 1 },
-			{ "contribution.agent.altLabel.digibib_unstemmed:Nemack", /*->*/ 0 }
+			{ "contribution.agent.altLabel.digibib_unstemmed:Nemack", /*->*/ 0 },
+			{ "exampleOfWork.language.id:\"http\\://id.loc.gov/vocabulary/iso639-2/eng\"", /*->*/ 1 }
 		});
 	} // @formatter:on