diff --git a/entrypoint.sh b/entrypoint.sh
index 5696e20..1616d75 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -83,7 +83,7 @@ pg_setup_conf() {
     printf "max_replication_slots    = 10\n"
     printf "shared_preload_libraries = 'repmgr'\n"
     if [[ -n $POSTGRES_MAX_CONNECTIONS ]]; then
-      printf "\nmax_connections = ${POSTGRES_MAX_CONNECTIONS}\n"
+      printf "\nmax_connections = '%s'\n" "$POSTGRES_MAX_CONNECTIONS"
     fi
 	} >> "$PGDATA/postgresql.conf"
 }