diff --git a/unix_setup.sh b/unix_setup.sh
index dc92f38236fe2bbcf9eb50f21d8240dd3a1ac849..9b6b383764e00750e33b829370d571e77c1f1a92 100644
--- a/unix_setup.sh
+++ b/unix_setup.sh
@@ -55,15 +55,15 @@ else
     exit 1
 fi
 
-ext_jar_filepath=$PWD/autopsy/modules/ext/sleuthkit-postgresql-$TSK_VERSION.jar;
+ext_jar_filepath="$PWD/autopsy/modules/ext/sleuthkit-postgresql-$TSK_VERSION.jar";
 echo -n "Copying sleuthkit-$TSK_VERSION.jar into the Autopsy directory..."
-rm -f $ext_jar_filepath;
+rm -f "$ext_jar_filepath";
 if [ "$?" -gt 0 ]; then  #checking if remove operation failed
     echo "ERROR: Deleting $ext_jar_filepath failed."
     echo "Please check your permissions."
     exit 1
 else
-    cp $sleuthkit_jar_filepath $ext_jar_filepath
+    cp $sleuthkit_jar_filepath "$ext_jar_filepath"
     if [ "$?" -ne 0 ]; then # checking copy operation was successful
         echo "ERROR: Copying $sleuthkit_jar_filepath to $ext_jar_filepath failed."
 	echo "Please check your permissions."