diff --git a/src/installer/step/mod.rs b/src/installer/step/mod.rs
index eea3d24f..cbb6b774 100644
--- a/src/installer/step/mod.rs
+++ b/src/installer/step/mod.rs
@@ -339,6 +339,17 @@ impl Step for DefineCoordinator {
 
         self.host.valid = SocketAddr::from_str(&self.host.value).is_ok();
 
+        if !self.host.valid {
+            // trim spaces at the end if any.
+            let clean_value = self.host.value.trim_end();
+
+            let value = format!("{}:8383", clean_value).to_string();
+            self.host.valid = SocketAddr::from_str(&value).is_ok();
+            if self.host.valid {
+                self.host.value = value;
+            }
+        }
+
         if !self.host.valid || !self.noise_key.valid {
             return false;
         }