diff --git a/src/yolo_webui/export_runner.py b/src/yolo_webui/export_runner.py
index 16d6e0f..0eada5d 100755
--- a/src/yolo_webui/export_runner.py
+++ b/src/yolo_webui/export_runner.py
@@ -247,16 +247,19 @@ def main(argv: Sequence[str] | None = None) -> int:
             flush=True,
         )
 
-        exported_path = model.export(
-            format=config.export_format,
-            imgsz=config.imgsz,
-            half=config.half,
-            int8=config.int8,
-            dynamic=config.dynamic,
-            simplify=config.simplify,
-            batch=config.batch,
-            workspace=config.workspace,
-        )
+        export_kwargs: dict[str, Any] = {
+            "format": config.export_format,
+            "imgsz": config.imgsz,
+            "half": config.half,
+            "int8": config.int8,
+            "dynamic": config.dynamic,
+            "simplify": config.simplify,
+            "batch": config.batch,
+        }
+        if config.export_format in ("engine", "tensorrt", "trt"):
+            export_kwargs["workspace"] = config.workspace
+
+        exported_path = model.export(**export_kwargs)
         result_path = _result_path(exported_path)
 
         print("Экспорт завершен успешно.", flush=True)
diff --git a/tests/test_export_runner.py b/tests/test_export_runner.py
index 9715869..3c6de01 100644
--- a/tests/test_export_runner.py
+++ b/tests/test_export_runner.py
@@ -88,12 +88,39 @@ def test_main_validates_config_and_reports_existing_export(
             "dynamic": True,
             "simplify": True,
             "batch": 2,
-            "workspace": 2.5,
         }
     ]
     assert f"__YOLO_WEBUI_RESULT__:{result}" in output.out
 
 
+def test_main_passes_workspace_only_for_engine_format(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+) -> None:
+    model = _write_model(tmp_path, monkeypatch)
+    result = tmp_path / "models" / "model.engine"
+    result.write_bytes(b"engine")
+    _, export_calls = _install_fake_ultralytics(monkeypatch, result)
+    config = _write_config(
+        tmp_path,
+        {
+            "model": model.name,
+            "format": "engine",
+            "imgsz": 640,
+            "half": False,
+            "int8": False,
+            "dynamic": False,
+            "simplify": True,
+            "batch": 1,
+            "workspace": 4.0,
+        },
+    )
+
+    return_code = export_runner.main([str(config)])
+    assert return_code == 0
+    assert export_calls[0]["workspace"] == 4.0
+
+
 @pytest.mark.parametrize(
     "override",
     [