diff --git a/cabal-install.sh b/cabal-install.sh
index fdcf006..a269929 100644
--- a/cabal-install.sh
+++ b/cabal-install.sh
@@ -1,7 +1,7 @@
 CABALBIN=${HOME}/.cabal/bin
 
-if ! echo ${PATH} | /bin/grep -q ${CABALBIN} ; then
-    if [ -d ${CABALBIN} ]; then
+if ! echo "${PATH}" | /bin/grep -q "${CABALBIN}" ; then
+    if [ -d "${CABALBIN}" ]; then
 	PATH=${PATH}:${CABALBIN}
     fi
 fi