diff --git a/schemas/latest/dbt_yml_files-latest.json b/schemas/latest/dbt_yml_files-latest.json
index 36c8041..7eff10b 100644
--- a/schemas/latest/dbt_yml_files-latest.json
+++ b/schemas/latest/dbt_yml_files-latest.json
@@ -60,6 +60,25 @@
         }
       }
     },
+    "data_tests":{
+      "type": "array",
+      "description": "Add descriptions to custom singular tests",
+      "items": {
+        "type": "object",
+        "required": ["name"],
+        "properties": {
+          "name": {
+            "type": "string",
+            "description": "The name of the singular test"
+          },
+          "description":{
+            "type": "string",
+            "description": "A description of the test's purpose, how it is implemented, and perhaps what you should do if it starts failing."
+          }
+        },
+        "additionalProperties": false
+      }
+    },
     "exposures": {
       "type": "array",
       "items": {
diff --git a/tests/latest/valid/dbt_yml_files.yml b/tests/latest/valid/dbt_yml_files.yml
index 3540fa8..3472065 100644
--- a/tests/latest/valid/dbt_yml_files.yml
+++ b/tests/latest/valid/dbt_yml_files.yml
@@ -326,4 +326,8 @@ sources:
           - name: my_unique_column
             description: This sure is a column
             data_tests:
-              - unique
\ No newline at end of file
+              - unique
+
+data_tests:
+  - name: my_cool_custom_test
+    description: "This checks that all numbers are positive, if it fails you should talk to data engineering"
\ No newline at end of file