diff --git a/library/lms.c b/library/lms.c
index e0f5946..26c48ef 100644
--- a/library/lms.c
+++ b/library/lms.c
@@ -205,7 +205,7 @@
     if( ret != 0 )
         goto exit;
 
-    status = psa_hash_update( &op, D_INTERNAL_CONSTANT_BYTES, D_CONST_LEN );
+    status = psa_hash_update( &op, D_INTR_CONSTANT_BYTES, D_CONST_LEN );
     ret = mbedtls_lms_error_from_psa( status );
     if( ret != 0 )
         goto exit;