diff --git a/programs/conditional_vault/src/instructions/add_metadata_to_conditional_tokens.rs b/programs/conditional_vault/src/instructions/add_metadata_to_conditional_tokens.rs
index a24828dcd..054f77c91 100644
--- a/programs/conditional_vault/src/instructions/add_metadata_to_conditional_tokens.rs
+++ b/programs/conditional_vault/src/instructions/add_metadata_to_conditional_tokens.rs
@@ -40,6 +40,11 @@ impl AddMetadataToConditionalTokens<'_> {
         //     VaultError::VaultAlreadySettled
         // );
 
+        require!(
+            self.vault.conditional_token_mints.contains(&self.conditional_token_mint.key()),
+            VaultError::InvalidConditionalTokenMint
+        );
+
         require!(
             self.conditional_token_metadata.data_is_empty(),
             VaultError::ConditionalTokenMetadataAlreadySet
@@ -102,4 +107,4 @@ impl AddMetadataToConditionalTokens<'_> {
 
         Ok(())
     }
-}
+}
\ No newline at end of file