diff --git a/src/caosadvancedtools/models/parser.py b/src/caosadvancedtools/models/parser.py
index e9c459ca447666ad270e658d4186dd69c40dc37f..a71badf3ee0c32ff331007cc7e99b43fb033dbef 100644
--- a/src/caosadvancedtools/models/parser.py
+++ b/src/caosadvancedtools/models/parser.py
@@ -566,7 +566,7 @@ class JsonSchemaParser(Parser):
     """Extends the yaml parser to read in datamodels defined in a json schema."""
     # @author Florian Spreckelsen
     # @date 2022-02-17
-    # @review Daniel Hornung 2022-02-18
+    # @review Timm Fitschen 2022-02-30
 
     def parse_model_from_json_schema(self, filename: str):
         """Return a datamodel created from the definition in the json schema in
@@ -584,6 +584,7 @@ class JsonSchemaParser(Parser):
         """
         # @author Florian Spreckelsen
         # @date 2022-02-17
+        # @review Timm Fitschen 2022-02-30
         with open(filename, 'r') as schema_file:
             model_dict = json.load(schema_file)
 
@@ -603,6 +604,7 @@ class JsonSchemaParser(Parser):
         our : DataModel
             The datamodel defined in `model_dict`
         """
+        # @review Timm Fitschen 2022-02-30
         if isinstance(model_dict, dict):
             model_dict = [model_dict]
 
@@ -625,6 +627,7 @@ class JsonSchemaParser(Parser):
         return DataModel(self.model.values())
 
     def _get_atomic_datatype(self, elt):
+        # @review Timm Fitschen 2022-02-30
         if elt["type"] == "string":
             if "format" in elt and elt["format"] in ["date", "date-time"]:
                 return db.DATETIME
@@ -640,6 +643,7 @@ class JsonSchemaParser(Parser):
             raise JsonSchemaDefinitionError(f"Unkown atomic type in {elt}.")
 
     def _treat_element(self, elt: dict, name: str):
+        # @review Timm Fitschen 2022-02-30
         force_list = False
         if name in self.model:
             return self.model[name], force_list
@@ -664,6 +668,7 @@ class JsonSchemaParser(Parser):
         return ent, force_list
 
     def _treat_record_type(self, elt: dict, name: str):
+        # @review Timm Fitschen 2022-02-30
         rt = db.RecordType(name=name)
         if "required" in elt:
             required = elt["required"]
@@ -689,6 +694,7 @@ class JsonSchemaParser(Parser):
         return rt
 
     def _treat_enum(self, elt: dict, name: str):
+        # @review Timm Fitschen 2022-02-30
         if "type" in elt and elt["type"] == "integer":
             raise NotImplementedError(
                 "Integer-enums are not allowd until "
@@ -704,6 +710,7 @@ class JsonSchemaParser(Parser):
         return rt
 
     def _treat_list(self, elt: dict, name: str):
+        # @review Timm Fitschen 2022-02-30
 
         if not "items" in elt:
             raise JsonSchemaDefinitionError(
diff --git a/unittests/json-schema-models/datamodel_missing_property_type.schema.json b/unittests/json-schema-models/datamodel_missing_property_type.schema.json
new file mode 100644
index 0000000000000000000000000000000000000000..eac3cc563df587568c4e9610d72618610566beef
--- /dev/null
+++ b/unittests/json-schema-models/datamodel_missing_property_type.schema.json
@@ -0,0 +1,7 @@
+{
+    "title": "Dataset",
+    "type": "object",
+    "properties": {
+        "method": { "description": "Missing property type" }
+    }
+}
diff --git a/unittests/test_json_schema_model_parser.py b/unittests/test_json_schema_model_parser.py
index ed0b48ceaa07563923867f23618eae7c5e3ad2a4..359f3c6a31b81fbbcfcdc834fe7784ce02b5387e 100644
--- a/unittests/test_json_schema_model_parser.py
+++ b/unittests/test_json_schema_model_parser.py
@@ -134,6 +134,14 @@ def test_required_no_list():
     assert "'Dataset' is not of type 'array'" in str(err.value)
 
 
+def test_missing_property_type():
+    """Exception must be raised when "type" is missing."""
+    with pytest.raises(JsonSchemaDefinitionError) as err:
+        parse_model_from_json_schema(
+            os.path.join(FILEPATH,
+                         "datamodel_missing_property_type.schema.json"))
+    assert "FIXME" in str(err.value)
+
 def test_enum():
     """Enums are represented in references to records of a specific type."""
     # @author Florian Spreckelsen