diff --git a/programs/conditional_vault/src/error.rs b/programs/conditional_vault/src/error.rs
index e5e970e01..d7e2aad57 100644
--- a/programs/conditional_vault/src/error.rs
+++ b/programs/conditional_vault/src/error.rs
@@ -34,4 +34,6 @@ pub enum VaultError {
     QuestionAlreadyResolved,
     #[msg("Conditional token metadata already set")]
     ConditionalTokenMetadataAlreadySet,
-}
+    #[msg("Conditional token account is not owned by the authority")]
+    UnauthorizedConditionalTokenAccount,
+}
\ No newline at end of file
diff --git a/programs/conditional_vault/src/instructions/common.rs b/programs/conditional_vault/src/instructions/common.rs
index 330d1f8b4..86cb1e9bb 100644
--- a/programs/conditional_vault/src/instructions/common.rs
+++ b/programs/conditional_vault/src/instructions/common.rs
@@ -65,9 +65,15 @@ impl<'info, 'c: 'info> InteractWithVault<'info> {
                 VaultError::ConditionalTokenMintMismatch
             );
 
+            require_eq!(
+                user_conditional_token_account.owner,
+                ctx.accounts.authority.key(),
+                VaultError::UnauthorizedConditionalTokenAccount
+            );
+
             user_conditional_token_accounts.push(user_conditional_token_account);
         }
 
         Ok((conditional_token_mints, user_conditional_token_accounts))
     }
-}
+}
\ No newline at end of file