diff --git a/src/caoscrawler/cfood-schema.yml b/src/caoscrawler/cfood-schema.yml
index 451cb1c0a4fcb44cd31c5db412a411417936333a..c5e0eaad092c12efbceb5f55b62b3d7cf8afdccf 100644
--- a/src/caoscrawler/cfood-schema.yml
+++ b/src/caoscrawler/cfood-schema.yml
@@ -135,6 +135,9 @@ cfood:
                   value:
                     description: Dictionary notation for variable values. Values can be given by a variable which is indicated by an initial "$". Use "$$" for setting values actually starting with a dollar sign.
                     type: string
+                  unit:
+                    description: The unit of this property. Units can be given by a variable which is indicated by an initial "$". Use "$$" for setting values actually starting with a dollar sign.
+                    type: string
                   collection_mode:
                     description: The collection mode defines whether the resulting property will be a single property or whether the values of multiple structure elements will be collected either into a list or a multiproperty.
                     enum: