diff --git a/OMPython/__init__.py b/OMPython/__init__.py
index 72efb31..f2d1b42 100755
--- a/OMPython/__init__.py
+++ b/OMPython/__init__.py
@@ -1280,6 +1280,7 @@ def simulate(self, resultfile=None, simflags=None, verbose=True):  # 11
         currentDir = os.getcwd()
         if (os.path.exists(getExeFile)):
             cmd = getExeFile + override + csvinput + r + simflags
+            cmd = cmd.split(" ")
             #print(cmd)
             os.chdir(self.tempdir)
             if (platform.system() == "Windows"):