diff --git a/contracts/lib/Errors.sol b/contracts/lib/Errors.sol
index 3ab13311..4fd95d59 100644
--- a/contracts/lib/Errors.sol
+++ b/contracts/lib/Errors.sol
@@ -139,6 +139,9 @@ library Errors {
     /// @notice The group reward pool is not whitelisted.
     error GroupingModule__GroupRewardPoolNotWhitelisted(address groupId, address groupRewardPool);
 
+    /// @notice To add an IP to group, require the IP royalty vault has been created.
+    error GroupingModule__IpRoyaltyVaultNotCreated(address ipId);
+
     ////////////////////////////////////////////////////////////////////////////
     //                            IP Asset Registry                           //
     ////////////////////////////////////////////////////////////////////////////
diff --git a/contracts/modules/grouping/GroupingModule.sol b/contracts/modules/grouping/GroupingModule.sol
index 172e7e6b..8dc22e27 100644
--- a/contracts/modules/grouping/GroupingModule.sol
+++ b/contracts/modules/grouping/GroupingModule.sol
@@ -181,6 +181,9 @@ contract GroupingModule is
             if (DISPUTE_MODULE.isIpTagged(ipIds[i])) {
                 revert Errors.GroupingModule__CannotAddDisputedIpToGroup(ipIds[i]);
             }
+            if (ROYALTY_MODULE.ipRoyaltyVaults(ipIds[i]) == address(0)) {
+                revert Errors.GroupingModule__IpRoyaltyVaultNotCreated(ipIds[i]);
+            }
 
             Licensing.LicensingConfig memory lc = LICENSE_REGISTRY.verifyGroupAddIp(
                 groupIpId,
diff --git a/test/foundry/modules/grouping/GroupingModule.t.sol b/test/foundry/modules/grouping/GroupingModule.t.sol
index 605b696f..59142be8 100644
--- a/test/foundry/modules/grouping/GroupingModule.t.sol
+++ b/test/foundry/modules/grouping/GroupingModule.t.sol
@@ -158,6 +158,9 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         licensingModule.setLicensingConfig(ipId2, address(pilTemplate), termsId, licensingConfig);
         vm.stopPrank();
 
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
+        licensingModule.mintLicenseTokens(ipId2, address(pilTemplate), termsId, 1, address(this), "", 0);
+
         vm.startPrank(alice);
         licensingModule.attachLicenseTerms(groupId, address(pilTemplate), termsId);
         licensingConfig.expectGroupRewardPool = address(0);
@@ -200,10 +203,12 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
         vm.startPrank(ipOwner2);
         licensingModule.attachLicenseTerms(ipId2, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId2, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId2, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         licensingConfig.expectGroupRewardPool = address(0);
@@ -538,6 +543,7 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
 
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
         vm.stopPrank();
 
@@ -587,6 +593,7 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         address[] memory ipIds = new address[](1);
@@ -636,6 +643,7 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         address[] memory ipIds = new address[](1);
@@ -673,11 +681,13 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         vm.startPrank(ipOwner2);
         licensingModule.attachLicenseTerms(ipId2, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId2, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId2, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         licensingConfig.expectGroupRewardPool = address(0);
@@ -788,6 +798,7 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         });
         vm.prank(ipOwner1);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
 
         licensingConfig.expectGroupRewardPool = address(0);
         vm.startPrank(alice);
@@ -929,10 +940,12 @@ contract GroupingModuleTest is BaseTest, ERC721Holder {
         vm.startPrank(ipOwner1);
         licensingModule.attachLicenseTerms(ipId1, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId1, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId1, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
         vm.startPrank(ipOwner2);
         licensingModule.attachLicenseTerms(ipId2, address(pilTemplate), termsId);
         licensingModule.setLicensingConfig(ipId2, address(pilTemplate), termsId, licensingConfig);
+        licensingModule.mintLicenseTokens(ipId2, address(pilTemplate), termsId, 1, address(this), "", 0);
         vm.stopPrank();
 
         licensingConfig.expectGroupRewardPool = address(0);