diff -ur a/Cargo.toml b/Cargo.toml
--- a/Cargo.toml	1969-12-31 19:00:01.000000000 -0500
+++ b/Cargo.toml	2023-03-14 07:57:14.025021766 -0400
@@ -195,6 +195,7 @@
 
 [features]
 docgen = ["dep:clap_mangen"]
+default = ["rdcore"]
 rdcore = []
 
 [target."cfg(target_arch = \"s390x\")".dependencies.mbrman]