diff --git a/russh/src/client/mod.rs b/russh/src/client/mod.rs
index 7dae1889..df0b8ecf 100644
--- a/russh/src/client/mod.rs
+++ b/russh/src/client/mod.rs
@@ -818,7 +818,7 @@ impl Session {
                 () = &mut keepalive_timer => {
                     if self.common.config.keepalive_max != 0 && self.common.alive_timeouts > self.common.config.keepalive_max {
                         debug!("Timeout, server not responding to keepalives");
-                        break
+                        return Err(crate::Error::KeepaliveTimeout);
                     }
                     self.common.alive_timeouts = self.common.alive_timeouts.saturating_add(1);
                     self.send_keepalive(true);
@@ -826,7 +826,7 @@ impl Session {
                 }
                 () = &mut inactivity_timer => {
                     debug!("timeout");
-                    break
+                    return Err(crate::Error::InactivityTimeout);
                 }
                 msg = self.receiver.recv(), if !self.is_rekeying() => {
                     match msg {
diff --git a/russh/src/lib.rs b/russh/src/lib.rs
index c713cb69..54c6d567 100644
--- a/russh/src/lib.rs
+++ b/russh/src/lib.rs
@@ -249,6 +249,14 @@ pub enum Error {
     #[error("Connection timeout")]
     ConnectionTimeout,
 
+    /// Keepalive timeout.
+    #[error("Keepalive timeout")]
+    KeepaliveTimeout,
+
+    /// Inactivity timeout.
+    #[error("Inactivity timeout")]
+    InactivityTimeout,
+
     /// Missing authentication method.
     #[error("No authentication method")]
     NoAuthMethod,
diff --git a/russh/src/server/session.rs b/russh/src/server/session.rs
index f83db8e5..66ae9745 100644
--- a/russh/src/server/session.rs
+++ b/russh/src/server/session.rs
@@ -447,7 +447,7 @@ impl Session {
                 () = &mut keepalive_timer => {
                     if self.common.config.keepalive_max != 0 && self.common.alive_timeouts > self.common.config.keepalive_max {
                         debug!("Timeout, client not responding to keepalives");
-                        break
+                        return Err(crate::Error::KeepaliveTimeout);
                     }
                     self.common.alive_timeouts = self.common.alive_timeouts.saturating_add(1);
                     sent_keepalive = true;
@@ -455,7 +455,7 @@ impl Session {
                 }
                 () = &mut inactivity_timer => {
                     debug!("timeout");
-                    break
+                    return Err(crate::Error::InactivityTimeout);
                 }
                 msg = self.receiver.recv(), if !self.is_rekeying() => {
                     match msg {