diff --git a/comfy_cli/command/custom_nodes/cm_cli_util.py b/comfy_cli/command/custom_nodes/cm_cli_util.py
index 7d487b38..347313cf 100644
--- a/comfy_cli/command/custom_nodes/cm_cli_util.py
+++ b/comfy_cli/command/custom_nodes/cm_cli_util.py
@@ -21,7 +21,7 @@
 }
 
 
-def execute_cm_cli(args, channel=None, fast_deps=False, no_deps=False, mode=None) -> str | None:
+def execute_cm_cli(args, channel=None, fast_deps=False, no_deps=False, mode=None, raise_on_error=False) -> str | None:
     _config_manager = ConfigManager()
 
     workspace_path = workspace_manager.workspace_path
@@ -70,6 +70,13 @@ def execute_cm_cli(args, channel=None, fast_deps=False, no_deps=False, mode=None
 
         return result.stdout
     except subprocess.CalledProcessError as e:
+        if raise_on_error:
+            if e.stdout:
+                print(e.stdout)
+            if e.stderr:
+                print(e.stderr, file=sys.stderr)
+            raise e
+
         if e.returncode == 1:
             print(f"\n[bold red]Execution error: {cmd}[/bold red]\n", file=sys.stderr)
             return None
diff --git a/comfy_cli/command/custom_nodes/command.py b/comfy_cli/command/custom_nodes/command.py
index 42f3b11c..d48331b5 100644
--- a/comfy_cli/command/custom_nodes/command.py
+++ b/comfy_cli/command/custom_nodes/command.py
@@ -436,7 +436,13 @@ def install(
     else:
         cmd = ["install"] + nodes
 
-    execute_cm_cli(cmd, channel=channel, fast_deps=fast_deps, no_deps=no_deps, mode=mode)
+    try:
+        execute_cm_cli(
+            cmd, channel=channel, fast_deps=fast_deps, no_deps=no_deps, mode=mode, raise_on_error=exit_on_fail
+        )
+    except subprocess.CalledProcessError as e:
+        if exit_on_fail:
+            raise typer.Exit(code=e.returncode)
 
 
 @app.command(help="Reinstall custom nodes")