diff --git a/OMPython/__init__.py b/OMPython/__init__.py
index 82950a4a3..c817657c5 100644
--- a/OMPython/__init__.py
+++ b/OMPython/__init__.py
@@ -1652,6 +1652,8 @@ def linearize(self, lintime=None, simflags=None):  # 22
 
         if simflags is None:
             simflags = ""
+        else:
+            simflags = " " + simflags
 
         if (os.path.exists(getExeFile)):
             cmd = getExeFile + linruntime + override + csvinput + simflags