diff --git a/library/ecdsa.c b/library/ecdsa.c
index f346526..162e62f 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -383,10 +383,10 @@
     switch( gid )
     {
 #ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
-    case MBEDTLS_ECP_DP_CURVE25519: return 0;
+        case MBEDTLS_ECP_DP_CURVE25519: return 0;
 #endif
 #ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
-    case MBEDTLS_ECP_DP_CURVE448: return 0;
+        case MBEDTLS_ECP_DP_CURVE448: return 0;
 #endif
     default: return 1;
     }