diff --git a/packages/protocol/test/layer1/preconf/router/RouterTest.t.sol b/packages/protocol/test/layer1/preconf/router/RouterTest.t.sol
index ff43469269..bbb676971a 100644
--- a/packages/protocol/test/layer1/preconf/router/RouterTest.t.sol
+++ b/packages/protocol/test/layer1/preconf/router/RouterTest.t.sol
@@ -94,11 +94,9 @@ contract RouterTest is RouterTestBase {
         router.proposePreconfedBlocks("", abi.encode(batchParams), "");
     }
 
-    function test_proposePreconfedBlocks_InvalidProposerParam() external {
-        address[] memory operators = new address[](3);
+    function test_proposePreconfedBlocks_proposerNotSender() external {
+        address[] memory operators = new address[](1);
         operators[0] = Bob;
-        operators[1] = Carol;
-        operators[2] = David;
         addOperators(operators);
 
         // Setup mock beacon for operator selection
@@ -124,7 +122,7 @@ contract RouterTest is RouterTestBase {
 
         // Create batch params with DIFFERENT proposer than sender
         ITaikoInbox.BatchParams memory params = ITaikoInbox.BatchParams({
-            proposer: Bob, // Set different proposer than sender (Carol)
+            proposer: Carol, // Set different proposer than sender (Carol)
             coinbase: address(0),
             parentMetaHash: bytes32(0),
             anchorBlockId: 0,
@@ -141,13 +139,15 @@ contract RouterTest is RouterTestBase {
 
         // Prank as Carol (selected operator) and propose blocks
         vm.prank(Carol);
-        vm.expectRevert(IPreconfRouter.InvalidParams.selector);
+        vm.expectRevert(IPreconfRouter.NotTheOperator.selector);
         router.proposePreconfedBlocks("", abi.encode(params), "");
     }
 
-    function test_proposePreconfedBlocks_proposerNotSender() external {
-        address[] memory operators = new address[](1);
+    function test_proposePreconfedBlocks_InvalidProposerParam() external {
+        address[] memory operators = new address[](3);
         operators[0] = Bob;
+        operators[1] = Carol;
+        operators[2] = David;
         addOperators(operators);
 
         // Setup mock beacon for operator selection
@@ -173,7 +173,7 @@ contract RouterTest is RouterTestBase {
 
         // Create batch params with DIFFERENT proposer than sender
         ITaikoInbox.BatchParams memory params = ITaikoInbox.BatchParams({
-            proposer: Carol, // Set different proposer than sender (Carol)
+            proposer: Bob, // Set different proposer than sender (Carol)
             coinbase: address(0),
             parentMetaHash: bytes32(0),
             anchorBlockId: 0,
@@ -190,7 +190,7 @@ contract RouterTest is RouterTestBase {
 
         // Prank as Carol (selected operator) and propose blocks
         vm.prank(Carol);
-        vm.expectRevert(IPreconfRouter.NotTheOperator.selector);
+        vm.expectRevert(IPreconfRouter.InvalidParams.selector);
         router.proposePreconfedBlocks("", abi.encode(params), "");
     }
 }