diff --git a/test/resources/schemas/case.yaml b/test/resources/schemas/case.yaml
index b248c39..89e7a12 100644
--- a/test/resources/schemas/case.yaml
+++ b/test/resources/schemas/case.yaml
@@ -24,8 +24,10 @@ links:
     - outbound
     multiplicity:
     - has_many
-    backref: 
+    backref:
     - cases
+    regex_match:
+    - Compound/*
 - rel: projects
   href: project/{id}
   templateRequired:
@@ -39,8 +41,10 @@ links:
     - outbound
     multiplicity:
     - has_many
-    backref: 
+    backref:
     - cases
+    regex_match:
+    - Project/*
 - rel: phenotypes
   href: phenotype/{id}
   templateRequired:
@@ -56,6 +60,8 @@ links:
     - has_many
     backref: 
     - cases
+    regex_match:
+    - Phenotypes/*
 - rel: same_as
   href: case/{id}
   templateRequired:
@@ -71,6 +77,8 @@ links:
     - has_many
     backref: 
     - cases
+    regex_match:
+    - Case/*
 properties:
   case_id:
     type: string