diff --git a/.travis.yml b/.travis.yml
index 8f45d087637..729943b9af8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ env:
   global:
     - ENERGYPLUS_VERSION=EnergyPlus-9.2.0-921312fa1d-Linux-x86_64
   jobs:
-    - TEST_ARG="make test-documentation test-experiment-setup test-autogenerated-files"
+    - TEST_ARG="make test-documentation test-experiment-setup test-autogenerated-files test-verify-files"
     - TEST_ARG="make test-dymola    PACKAGE=\"Buildings.{Air,Examples}\""
     - TEST_ARG="make test-optimica  PACKAGE=\"Buildings.{Air,Examples}\""
     - TEST_ARG="make test-jmodelica PACKAGE=\"Buildings.{Air,Examples}\""
diff --git a/Buildings/Resources/Scripts/travis/Makefile b/Buildings/Resources/Scripts/travis/Makefile
index 395006f3c7d..2c759130c59 100644
--- a/Buildings/Resources/Scripts/travis/Makefile
+++ b/Buildings/Resources/Scripts/travis/Makefile
@@ -31,6 +31,9 @@ test-autogenerated-files:
 	  python Buildings/Resources/src/Controls/OBC/UnitConversions/unit_converters.py; \
 	  git diff --exit-code Buildings)
 
+test-verify-files:
+	(cd $(ROOT)/Buildings && ../bin/verifyFiles.py)
+
 # Test whether all EnergyPlus validation files are up to date.
 # This targets searches all files `run.sh` and executes them.
 test-energyplus-validations:
diff --git a/bin/checkRelease.py b/bin/verifyFiles.py
old mode 100755
new mode 100644
similarity index 93%
rename from bin/checkRelease.py
rename to bin/verifyFiles.py
index d7987ed1db5..44ac52d06f4
--- a/bin/checkRelease.py
+++ b/bin/verifyFiles.py
@@ -1,20 +1,20 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 #####################################################################
 # This script checks mo and mos files for invalid syntax.
-# Run this file before checking changes into the trunk.
 #
 # MWetter@lbl.gov                                          2011-03-06
 #####################################################################
 import os, string, fnmatch, os.path, sys
 # --------------------------
 # Global settings
-LIBHOME=os.path.abspath(".")
+LIBHOME=os.path.join(".")
 
 # List of invalid strings
 # Regarding the strings __Dymola_*, see https://trac.modelica.org/Modelica/ticket/786
 # for possible replacements.
 INVALID_IN_ALL=["fixme", "import \"",
                 "import Buildings;",
+                "import IBPSA;",
                 "<h1", "<h2", "<h3", "todo", "xxx", "tt>", "<--",
                 "realString", "integerString", "structurallyIncomplete",
                 "preferedView", "Algorithm=", "Diagram,", "DocumentationClass",
@@ -37,7 +37,12 @@
                 "__Dymola_normallyConstant",
                 "__Dymola_NumberOfIntervals",
                 "__Dymola_saveSelector",
-                "__Dymola_Text"]
+                "__Dymola_Text",
+                "modelica://AixLib",
+	        "modelica://IBPSA",
+                "modelica://BuildingSystems",
+	        "modelica://IDEAS",
+                "modelica://https://"]
 # List of invalid strings in .mos files
 INVALID_IN_MOS=[]
 # List of invalid regular expressions in .mo files
@@ -47,7 +52,7 @@
 
 #########################################################
 def reportError(message):
-    print "*** Error: ", message
+    print("*** Error: ", message)
     global IERR
     IERR=IERR+1
 
@@ -153,5 +158,5 @@ def reportErrorIfMissing(fileName, listOfStrings):
 # Terminate if there was an error.
 # This allows other scripts to check the return value
 if IERR != 0:
-    print "*** Terminating due to found errors in examined files."
-    sys.exit(2)
+    print("*** Terminating due to found errors in examined files.")
+    sys.exit(1)