diff --git a/providers/implementations/kdfs/pbkdf2.c b/providers/implementations/kdfs/pbkdf2.c
index d139846148..b383314064 100644
--- a/providers/implementations/kdfs/pbkdf2.c
+++ b/providers/implementations/kdfs/pbkdf2.c
@@ -93,7 +93,7 @@ static void *kdf_pbkdf2_new(void *provctx)
 static void kdf_pbkdf2_cleanup(KDF_PBKDF2 *ctx)
 {
     ossl_prov_digest_reset(&ctx->digest);
-#ifdef FIPS_MODULE
+#ifdef OPENSSL_PEDANTIC_ZEROIZATION
     OPENSSL_clear_free(ctx->salt, ctx->salt_len);
 #else
     OPENSSL_free(ctx->salt);