diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 0a5ecc8..c3b8335 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -392,45 +392,71 @@
                                           size_t *bits)
 {
     switch (grpid) {
+#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
         case MBEDTLS_ECP_DP_SECP192R1:
             *bits = 192;
             return PSA_ECC_FAMILY_SECP_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
         case MBEDTLS_ECP_DP_SECP224R1:
             *bits = 224;
             return PSA_ECC_FAMILY_SECP_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
         case MBEDTLS_ECP_DP_SECP256R1:
             *bits = 256;
             return PSA_ECC_FAMILY_SECP_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
         case MBEDTLS_ECP_DP_SECP384R1:
             *bits = 384;
             return PSA_ECC_FAMILY_SECP_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
         case MBEDTLS_ECP_DP_SECP521R1:
             *bits = 521;
             return PSA_ECC_FAMILY_SECP_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
         case MBEDTLS_ECP_DP_BP256R1:
             *bits = 256;
             return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
         case MBEDTLS_ECP_DP_BP384R1:
             *bits = 384;
             return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
         case MBEDTLS_ECP_DP_BP512R1:
             *bits = 512;
             return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
+#endif
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
         case MBEDTLS_ECP_DP_CURVE25519:
             *bits = 255;
             return PSA_ECC_FAMILY_MONTGOMERY;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP192K1:
             *bits = 192;
             return PSA_ECC_FAMILY_SECP_K1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP224K1:
             *bits = 224;
             return PSA_ECC_FAMILY_SECP_K1;
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
         case MBEDTLS_ECP_DP_SECP256K1:
             *bits = 256;
             return PSA_ECC_FAMILY_SECP_K1;
+#endif
+#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
         case MBEDTLS_ECP_DP_CURVE448:
             *bits = 448;
             return PSA_ECC_FAMILY_MONTGOMERY;
+#endif
         default:
             *bits = 0;
             return 0;