diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index a4ca1d0bf..5c560c29b 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -505,6 +505,7 @@ mbedtls_ecp_group_id mbedtls_ecc_group_of_psa( psa_ecc_family_t curve,
             break;
     }
 
+    (void) bits_is_sloppy;
     return( MBEDTLS_ECP_DP_NONE );
 }
 #endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) ||