diff --git a/ebil.sh b/ebil.sh
index 4c4c225..c85482b 100755
--- a/ebil.sh
+++ b/ebil.sh
@@ -55,7 +55,7 @@ sourceenv() {
 
 checksite() {
 	local site="$1"
-	local pat='^[a-z]+.ebil.club$'
+	local pat='^[a-z]+\.ebil\.club$'
 
 	[[ -z "$site" ]] && die 'site not specified'
 	[[ "$site" =~ $pat ]] || die 'malformed site url' "(expected form '${pat}'):" "$site"
@@ -74,7 +74,7 @@ rcopy() {
 	rsync -rltzq --progress "$@" "$src/" "$dst"
 }
 
-push() {
+push() {^[a-z]+\.ebil\.club$
 	local site="$1"
 	local path="$2"
 	local host="$3"