diff --git a/Makefile.in b/Makefile.in
index e62c99404..a880ca6a0 100755
--- a/Makefile.in
+++ b/Makefile.in
@@ -221,8 +221,10 @@ ifneq ($(build_python),0)
 	@INSTALL@ tools/src/finish_install.py tools/bin
 	(PYTHONPATH=''; @PYTHON_CMD@ tools/bin/finish_install.py @prefix@ @PYTHON_CMD@)
 	chmod +x @ct_bindir@/ctnew
+ifeq ($(build_pyhton),2)
 	chmod +x @ct_bindir@/mixmaster
-	cp -f @homedir@/setup_cantera @ct_bindir@
+endif
+	cp -f "@homedir@/setup_cantera" "@ct_bindir@"
 endif
 else
 	cd Cantera/fortran/f77demos; sed s'/isentropic/ctlib/g' isentropic.dsp > ctlib.dsp