diff --git a/clients/cli/src/main/java/org/apache/gravitino/cli/ErrorMessages.java b/clients/cli/src/main/java/org/apache/gravitino/cli/ErrorMessages.java
index 25532e33fb5..e90c5259638 100644
--- a/clients/cli/src/main/java/org/apache/gravitino/cli/ErrorMessages.java
+++ b/clients/cli/src/main/java/org/apache/gravitino/cli/ErrorMessages.java
@@ -59,7 +59,6 @@ public class ErrorMessages {
   public static final String UNKNOWN_ROLE = "Unknown role.";
   public static final String ROLE_EXISTS = "Role already exists.";
   public static final String TABLE_EXISTS = "Table already exists.";
-  public static final String MODEL_EXISTS = "Model already exists.";
   public static final String INVALID_SET_COMMAND =
       "Unsupported combination of options either use --name, --user, --group or --property and --value.";
   public static final String INVALID_REMOVE_COMMAND =
diff --git a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/LinkModel.java b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/LinkModel.java
index 2660382d7cd..6e8a4ffb76d 100644
--- a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/LinkModel.java
+++ b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/LinkModel.java
@@ -101,6 +101,6 @@ public void handle() {
     }
 
     System.out.println(
-        "Link model " + model + " to " + uri + " with alias " + Arrays.toString(alias));
+        "Linked model " + model + " to " + uri + " with aliases " + Arrays.toString(alias));
   }
 }
diff --git a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/RegisterModel.java b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/RegisterModel.java
index 5a099266c31..d50dbed50e2 100644
--- a/clients/cli/src/main/java/org/apache/gravitino/cli/commands/RegisterModel.java
+++ b/clients/cli/src/main/java/org/apache/gravitino/cli/commands/RegisterModel.java
@@ -22,6 +22,7 @@
 import java.util.Map;
 import org.apache.gravitino.NameIdentifier;
 import org.apache.gravitino.cli.ErrorMessages;
+import org.apache.gravitino.cli.Main;
 import org.apache.gravitino.client.GravitinoClient;
 import org.apache.gravitino.exceptions.ModelAlreadyExistsException;
 import org.apache.gravitino.exceptions.NoSuchCatalogException;
@@ -96,6 +97,7 @@ public void handle() {
       System.out.println("Successful register " + registeredModel.name() + ".");
     } else {
       System.err.println("Failed to register model: " + model + ".");
+      Main.exit(-1);
     }
   }
 }
diff --git a/clients/cli/src/test/java/org/apache/gravitino/cli/TestModelCommands.java b/clients/cli/src/test/java/org/apache/gravitino/cli/TestModelCommands.java
index 7c3aa511d33..391201f292f 100644
--- a/clients/cli/src/test/java/org/apache/gravitino/cli/TestModelCommands.java
+++ b/clients/cli/src/test/java/org/apache/gravitino/cli/TestModelCommands.java
@@ -293,6 +293,7 @@ void testModelAuditCommand() {
     commandLine.handleCommandLine();
     verify(mockAudit).handle();
   }
+
   @Test
   void testRegisterModelCommand() {
     RegisterModel mockCreate = mock(RegisterModel.class);