diff --git a/tests/tcmpkeys.c b/tests/tcmpkeys.c
index 3f68633e..cee66977 100644
--- a/tests/tcmpkeys.c
+++ b/tests/tcmpkeys.c
@@ -45,7 +45,9 @@ static EVP_PKEY *load_key(const char *uri)
     }
 
     if (strncmp(uri, "pkcs11:", 7)) {
-        /* public file */
+        /* This is a workaround for OpenSSL < 3.2.0 where the code fails
+         * to correctly source public keys unless explicitly requested
+         * via an expect hint */
         if (OSSL_STORE_expect(store, OSSL_STORE_INFO_PUBKEY) != 1) {
             fprintf(stderr, "Failed to expect Public Key File\n");
             exit(EXIT_FAILURE);