diff --git a/src/test/unit/AVSDirectoryUnit.t.sol b/src/test/unit/AVSDirectoryUnit.t.sol
index 71c770886..24a057a14 100644
--- a/src/test/unit/AVSDirectoryUnit.t.sol
+++ b/src/test/unit/AVSDirectoryUnit.t.sol
@@ -72,6 +72,7 @@ contract AVSDirectoryUnitTests is EigenLayerUnitTestSetup, IAVSDirectoryEvents,
         assertEq(address(avsDirectory.delegation()), address(delegationManagerMock));
         cheats.expectRevert("Initializable: contract is already initialized");
         avsDirectory.initialize(address(this), 0);
+        assertTrue(avsDirectory.domainSeparator() != bytes32(0), "domain separator not set");
     }
 
     /// -----------------------------------------------------------------------
diff --git a/src/test/unit/DelegationUnit.t.sol b/src/test/unit/DelegationUnit.t.sol
index 9c1f6af34..f5bf6393a 100644
--- a/src/test/unit/DelegationUnit.t.sol
+++ b/src/test/unit/DelegationUnit.t.sol
@@ -1362,6 +1362,7 @@ contract DelegationManagerUnitTests_Initialization_Setters is DelegationManagerU
         );
         assertEq(delegationManager.owner(), address(this), "constructor / initializer incorrect, owner set wrong");
         assertEq(delegationManager.paused(), 0, "constructor / initializer incorrect, paused status set wrong");
+        assertTrue(delegationManager.domainSeparator() != bytes32(0), "domain separator not set");
     }
 
     /// @notice Verifies that the DelegationManager cannot be iniitalized multiple times
diff --git a/src/test/unit/StrategyManagerUnit.t.sol b/src/test/unit/StrategyManagerUnit.t.sol
index f2b279e68..6bc86be3b 100644
--- a/src/test/unit/StrategyManagerUnit.t.sol
+++ b/src/test/unit/StrategyManagerUnit.t.sol
@@ -262,6 +262,8 @@ contract StrategyManagerUnitTests_initialize is StrategyManagerUnitTests {
             address(pauserRegistry),
             "strategyManager.pauserRegistry() != pauserRegistry"
         );
+
+        assertTrue(strategyManager.domainSeparator() != bytes32(0), "domain separator not set");
     }
 }