diff --git a/basemodelica.py b/basemodelica.py
index f6a2ab6..a871a1f 100644
--- a/basemodelica.py
+++ b/basemodelica.py
@@ -50,7 +50,7 @@ def precompile_testbaesmodelica(systemImage: os.PathLike | None = None) -> None:
              'Pkg.develop(path="TestBaseModelica");'
              'Pkg.precompile("TestBaseModelica")')
   else:
-    print("Pre-compiling Julia system image %s for TestBaseModelica."
+    print("Pre-compiling Julia system image %s for TestBaseModelica. "
           "This might take a while." % systemImage)
 
     jl.seval('create_sysimage(["TestBaseModelica"];'
diff --git a/testmodel.py b/testmodel.py
index a955916..4d16ba8 100755
--- a/testmodel.py
+++ b/testmodel.py
@@ -554,6 +554,12 @@ def sendExpressionOldOrNew(cmd):
         cmd += " --sysimage=%s" % conf["julia-system-image"]
       cmd += " %s" % juliaCallFile
       with open(simFile,"w") as fp:
+        with open(juliaCallFile, "r") as juliaFile:
+          file_content = juliaFile.read()
+          fp.write("%s_test.jl:\n\n" % conf["modelName"])
+          fp.write(file_content)
+          fp.write("\n")
+
         fp.write("%s\n" % (cmd))
       res = checkOutputTimeout(
       "(rm -f %s.pipe ; mkfifo %s.pipe ; head -c 1048576 < %s.pipe >> %s & %s > %s.pipe 2>&1)"