diff --git a/Cantera/python/winsetup.py b/Cantera/python/winsetup.py
index 0f0a8bdf3..448e8bc79 100755
--- a/Cantera/python/winsetup.py
+++ b/Cantera/python/winsetup.py
@@ -3,7 +3,7 @@ from distutils.core import setup, Extension
 libdir = ['../../build/lib/i686-pc-win32']
     
 setup(name="Cantera",
-          version="1.5.4",
+          version="1.5.5",
           description="The Cantera Python Interface",
           long_description="""
           """,
diff --git a/bin/mixmaster.py b/bin/mixmaster.py
index 8f17ec42a..0d8d755dd 100755
--- a/bin/mixmaster.py
+++ b/bin/mixmaster.py
@@ -1,2 +1,5 @@
-from MixMaster import MixMaster
-o = MixMaster()
+try:
+    from MixMaster import MixMaster
+    o =  MixMaster()
+except:
+    i = input("MixMaster failed to start!")