diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 406e6c4cfb..e85bbb8d57 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -108,9 +108,9 @@ static int key_type_is_raw_bytes( psa_key_type_t type )
 
 typedef struct
 {
-    mbedtls_psa_random_context_t rng;
     unsigned initialized : 1;
     unsigned rng_state : 2;
+    mbedtls_psa_random_context_t rng;
 } psa_global_data_t;
 
 static psa_global_data_t global_data;