diff --git a/programs/fuzz/fuzz_pubkey.c b/programs/fuzz/fuzz_pubkey.c
index 7f5e4aa..8946973 100644
--- a/programs/fuzz/fuzz_pubkey.c
+++ b/programs/fuzz/fuzz_pubkey.c
@@ -11,6 +11,12 @@
     mbedtls_pk_context pk;
 
     mbedtls_pk_init(&pk);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
     ret = mbedtls_pk_parse_public_key(&pk, Data, Size);
     if (ret == 0) {
 #if defined(MBEDTLS_RSA_C)
@@ -66,7 +72,9 @@
             abort();
         }
     }
+exit:
     mbedtls_pk_free(&pk);
+    mbedtls_psa_crypto_free();
 #else
     (void) Data;
     (void) Size;