diff --git a/pyproject.toml b/pyproject.toml
index 760d328..5cd74ec 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ name = "build-fpga"  # REQUIRED, is the only field that cannot be marked as dyna
 # https://packaging.python.org/guides/single-sourcing-package-version/
 
 # dynamic = ["version"]
-version = "0.4.0"  # REQUIRED, although can be dynamic
+version = "0.4.1"  # REQUIRED, although can be dynamic
 
 # This is a one-line description or tagline of what your project does. This
 # corresponds to the "Summary" metadata field:
diff --git a/src/build_fpga/efinity/efinity.py b/src/build_fpga/efinity/efinity.py
index a94866c..405acb0 100644
--- a/src/build_fpga/efinity/efinity.py
+++ b/src/build_fpga/efinity/efinity.py
@@ -84,6 +84,5 @@ def create_project(cfg, filename):
 def build_project(cfg):
     name = f"{cfg['prj_info']['name']}.xml"
     create_project(cfg, name)
-    os.mkdir("output")
     os.system(f"efx_run --prj {name} --output_dir outflow --work_dir work")