diff --git a/Makefile b/Makefile
index 1a13cfc6..357eb4c7 100644
--- a/Makefile
+++ b/Makefile
@@ -54,7 +54,7 @@ bin/m4:
 
 
 ocaml: curl m4
-	rm ocaml/Qptypes.ml
+	- rm -f -- ocaml/Qptypes.ml
 	$(MAKE) ocaml/Qptypes.ml
 
 ocaml/Qptypes.ml: 
diff --git a/scripts/install_ocaml.sh b/scripts/install_ocaml.sh
index 72a6909a..fe9dde2f 100755
--- a/scripts/install_ocaml.sh
+++ b/scripts/install_ocaml.sh
@@ -6,10 +6,15 @@
 QPACKAGE_ROOT=${PWD}
 PACKAGES="core cryptokit"
 
+if [[ -f quantum_package.rc ]]
+then
+  source quantum_package.rc
+fi
 make -C ocaml Qptypes.ml &> /dev/null
 if [[ $? -ne 0 ]]
 then
 
+  rm -rf -- ${HOME}/ocamlbrew
   scripts/fetch_from_web.py "https://raw.github.com/hcarty/ocamlbrew/master/ocamlbrew-install" ocamlbrew-install.sh 
   cat < ocamlbrew-install.sh | env OCAMLBREW_FLAGS="-r" bash | tee ocamlbrew_install.log
   grep "source " ocamlbrew_install.log | grep "etc/ocamlbrew.bashrc"  >> quantum_package.rc