diff --git a/OMPython/__init__.py b/OMPython/__init__.py
index 83dcdfed9..825d2c46d 100644
--- a/OMPython/__init__.py
+++ b/OMPython/__init__.py
@@ -947,7 +947,6 @@ def _run_cmd(self, cmd: list):
         logger.debug("Run OM command {} in {}".format(cmd, self.tempdir))
 
         if platform.system() == "Windows":
-            omhome = os.path.join(os.environ.get("OPENMODELICAHOME"))
             dllPath = ""
 
             ## set the process environment from the generated .bat file in windows which should have all the dependencies