diff --git a/vocabulary/fos.json b/vocabulary/fos.json
index 5170296..0a247a0 100644
--- a/vocabulary/fos.json
+++ b/vocabulary/fos.json
@@ -74,7 +74,7 @@
             {
               "code": "010303",
               "id": "010303 astronomy & astrophysics",
-              "label": "010303 astronomy & astrophysics",
+              "label": "astronomy & astrophysics",
               "level": 3
             },
             {
@@ -110,7 +110,7 @@
             {
               "code": "010309",
               "id": "010309 optics",
-              "label": "010309 optics",
+              "label": "optics",
               "level": 3
             }
           ]
@@ -290,7 +290,7 @@
         {
           "code": "0202",
           "id": "0202 electrical engineering, electronic engineering, information engineering",
-          "label": "0202 electrical engineering, electronic engineering, information engineering",
+          "label": "electrical engineering, electronic engineering, information engineering",
           "level": 2,
           "children": [
             {
@@ -1086,7 +1086,7 @@
         {
           "code": "0501",
           "id": "0501 psychology and cognitive sciences",
-          "label": "0501 psychology and cognitive sciences",
+          "label": "psychology and cognitive sciences",
           "level": 2,
           "children": [
             {