diff --git a/library/sha256.c b/library/sha256.c
index 4e82c0b..0432ac8 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -419,13 +419,13 @@
         mbedtls_sha256_finish( &ctx, sha256sum );
 
         if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
-        {
+        { // LCOV_EXCL_START
             if( verbose != 0 )
                 mbedtls_printf( "failed\n" );
 
             ret = 1;
             goto exit;
-        }
+        } // LCOV_EXCL_STOP
 
         if( verbose != 0 )
             mbedtls_printf( "passed\n" );