diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h
index 4a0c87ccf..576613309 100644
--- a/include/mbedtls/psa_util.h
+++ b/include/mbedtls/psa_util.h
@@ -48,7 +48,7 @@ static inline psa_status_t mbedtls_psa_get_free_key_slot( psa_key_slot_t *key )
 {
     for( psa_key_slot_t slot = 1; slot <= 32; slot++ )
     {
-        if( psa_get_key_information( slot, NULL, NULL )  == PSA_ERROR_EMPTY_SLOT )
+        if( psa_get_key_information( slot, NULL, NULL ) == PSA_ERROR_EMPTY_SLOT )
         {
             *key = slot;
             return( PSA_SUCCESS );