diff --git a/src/test/java/net/hostsharing/hsadminng/arch/ArchitectureTest.java b/src/test/java/net/hostsharing/hsadminng/arch/ArchitectureTest.java
index df26279d..9c73c9b9 100644
--- a/src/test/java/net/hostsharing/hsadminng/arch/ArchitectureTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/arch/ArchitectureTest.java
@@ -58,6 +58,7 @@ public class ArchitectureTest {
                     "..hs.booking.project",
                     "..hs.booking.item",
                     "..hs.booking.item.validators",
+                    "..hs.hosting.contact",
                     "..hs.hosting.asset",
                     "..hs.hosting.asset.validators",
                     "..errors",
@@ -150,7 +151,8 @@ public class ArchitectureTest {
             .should().onlyBeAccessed().byClassesThat()
             .resideInAnyPackage(
                     "..hs.booking.(*)..",
-                    "..hs.hosting.(*).."
+                    "..hs.hosting.(*)..",
+                    "..hs.validation" // TODO.impl: Some Validators need to be refactored to booking package.
             );
 
     @ArchTest