diff --git a/process/cron/preview.cron b/process/cron/preview.cron
index eb39fd8f8..63fe2ca76 100755
--- a/process/cron/preview.cron
+++ b/process/cron/preview.cron
@@ -1,17 +1,17 @@
 #!/bin/bash
 (
 [ "$PREVIEW" != "yes" ] && exit
-[ -z ${ERESSEA} ] && ERESSEA=$HOME/eressea
+[ -z "${ERESSEA}" ] && ERESSEA="$HOME/eressea"
 
 branch="develop"
-if [ -e ${ERESSEA}/build/.preview ]; then
-    branch=`cat ${ERESSEA}/build/.preview`
+if [ -e "${ERESSEA}/build/.preview" ]; then
+    branch=$(cat "${ERESSEA}/build/.preview")
 fi
-SRC=${ERESSEA}/git
-${SRC}/s/preview build ${branch} || exit $?
-for game in 2 3 4 ; do
-	${SRC}/s/preview -g ${game} run && \
-	${SRC}/s/preview -g ${game} send
+SRC="${ERESSEA}/git"
+"${SRC}/s/preview" build "$branch" || exit $?
+for game in "$@" ; do
+	"${SRC}/s/preview" -g "$game" run && \
+	"${SRC}/s/preview" -g "$game" send
 done
-) | tee -a $HOME/log/preview.cron.log
+) | tee -a "$HOME/log/preview.cron.log"
 
diff --git a/s/coverity b/s/coverity
index 3d218adb7..01bb2a042 100755
--- a/s/coverity
+++ b/s/coverity
@@ -6,7 +6,7 @@ cd Debug
 make clean
 ../../coverity/bin/cov-build --dir cov-int make eressea
 tar czf eressea.tgz cov-int
-curl --form token=IISXKH3A1ngZGfFmBz_aSA \
+curl -k --form token=IISXKH3A1ngZGfFmBz_aSA \
   --form email=enno.rehling@gmail.com \
   --form file=@eressea.tgz \
   --form version="$VERSION" \