diff --git a/nautilus_core/adapters/src/databento/python/live.rs b/nautilus_core/adapters/src/databento/python/live.rs
index 1a5b69bc919e..3b9a9d82860d 100644
--- a/nautilus_core/adapters/src/databento/python/live.rs
+++ b/nautilus_core/adapters/src/databento/python/live.rs
@@ -179,10 +179,10 @@ impl DatabentoLiveClient {
         callback_pyo3: PyObject,
     ) -> PyResult<&'py PyAny> {
         if self.is_closed {
-            return Err(to_pyruntime_err("Client is already closed"));
+            return Err(to_pyruntime_err("Client already closed"));
         };
         if self.is_running {
-            return Err(to_pyruntime_err("Client is already running"));
+            return Err(to_pyruntime_err("Client already running"));
         };
 
         debug!("Starting client");
@@ -230,10 +230,10 @@ impl DatabentoLiveClient {
     #[pyo3(name = "close")]
     fn py_close(&mut self) -> PyResult<()> {
         if !self.is_running {
-            return Err(to_pyruntime_err("Client was never started"));
+            return Err(to_pyruntime_err("Client never started"));
         };
         if self.is_closed {
-            return Err(to_pyruntime_err("Client is already closed"));
+            return Err(to_pyruntime_err("Client already closed"));
         };
 
         debug!("Closing client");