diff --git a/shacl/dev-eauto.ttl b/shacl/dev-eauto.ttl
index b540b64..1a77d67 100644
--- a/shacl/dev-eauto.ttl
+++ b/shacl/dev-eauto.ttl
@@ -12,4 +12,6 @@ ff:MainPersonShape a sh:NodeShape ;
     sh:property [
         sh:path ff:hasResidence ;
         sh:in ("Berlin") ;
+        sh:minCount 1 ;
+        sh:maxCount 1 ;
     ]  .
diff --git a/shacl/dev-solar.ttl b/shacl/dev-solar.ttl
index ba8be90..3ee18dc 100644
--- a/shacl/dev-solar.ttl
+++ b/shacl/dev-solar.ttl
@@ -16,4 +16,6 @@ ff:MainPersonShape a sh:NodeShape ;
     sh:property [
         sh:path ff:hasResidence ;
         sh:in ("Berlin") ;
+        sh:minCount 1 ;
+        sh:maxCount 1 ;
     ]  .