diff --git a/acme_common/build.rs b/acme_common/build.rs
index d7d0d92..05ee769 100644
--- a/acme_common/build.rs
+++ b/acme_common/build.rs
@@ -6,7 +6,6 @@ macro_rules! set_rustc_env_var {
     }};
 }
 
-
 fn main() {
     if let Ok(_) = env::var("DEP_OPENSSL_VERSION_NUMBER") {
         set_rustc_env_var!("ACMED_TLS_LIB_NAME", "OpenSSL");
diff --git a/acmed/src/main.rs b/acmed/src/main.rs
index a0f5d1e..2bbbc73 100644
--- a/acmed/src/main.rs
+++ b/acmed/src/main.rs
@@ -1,6 +1,6 @@
 use crate::main_event_loop::MainEventLoop;
 use acme_common::crypto::{
-    HashFunction, JwsSignatureAlgorithm, KeyType, get_lib_name, get_lib_version
+    get_lib_name, get_lib_version, HashFunction, JwsSignatureAlgorithm, KeyType,
 };
 use acme_common::logs::{set_log_system, DEFAULT_LOG_LEVEL};
 use acme_common::{clean_pid_file, init_server};
@@ -49,7 +49,7 @@ pub const MIN_RATE_LIMIT_SLEEP_MILISEC: u64 = 100;
 
 fn main() {
     let full_version = format!(
-        "{} {}\n\nCompiled with:\n  {} {}\n  {} {}",
+        "{} built for {}\n\nCryptographic library:\n - {} {}\nHTTP client library:\n - {} {}",
         APP_VERSION,
         env!("ACMED_TARGET"),
         get_lib_name(),
diff --git a/tacd/build.rs b/tacd/build.rs
new file mode 100644
index 0000000..8773cee
--- /dev/null
+++ b/tacd/build.rs
@@ -0,0 +1,7 @@
+use std::env;
+
+fn main() {
+    if let Ok(target) = env::var("TARGET") {
+        println!("cargo:rustc-env=TACD_TARGET={}", target);
+    };
+}
diff --git a/tacd/src/main.rs b/tacd/src/main.rs
index c6f92c6..a0e385d 100644
--- a/tacd/src/main.rs
+++ b/tacd/src/main.rs
@@ -1,7 +1,7 @@
 mod openssl_server;
 
 use crate::openssl_server::start as server_start;
-use acme_common::crypto::{HashFunction, KeyType, X509Certificate};
+use acme_common::crypto::{get_lib_name, get_lib_version, HashFunction, KeyType, X509Certificate};
 use acme_common::error::Error;
 use acme_common::logs::{set_log_system, DEFAULT_LOG_LEVEL};
 use acme_common::{clean_pid_file, to_idna};
@@ -67,11 +67,19 @@ fn init(cnf: &ArgMatches) -> Result<(), Error> {
 }
 
 fn main() {
+    let full_version = format!(
+        "{} built for {}\n\nCryptographic library:\n - {} {}",
+        APP_VERSION,
+        env!("TACD_TARGET"),
+        get_lib_name(),
+        get_lib_version(),
+    );
     let default_crt_key_type = DEFAULT_CRT_KEY_TYPE.to_string();
     let default_crt_digest = DEFAULT_CRT_DIGEST.to_string();
     let default_log_level = DEFAULT_LOG_LEVEL.to_string().to_lowercase();
     let matches = App::new(APP_NAME)
         .version(APP_VERSION)
+        .long_version(full_version.as_str())
         .arg(
             Arg::with_name("listen")
                 .long("listen")