diff --git a/chart/templates/like-service.yaml b/chart/templates/like-service.yaml
index 371155a0..1b0613be 100644
--- a/chart/templates/like-service.yaml
+++ b/chart/templates/like-service.yaml
@@ -65,7 +65,7 @@ spec:
             - name: DB_HOST
               value: {{ tpl .Values.likeService.deployment.container.env.DB_HOST . }}
             - name: DB_PORT
-              value: {{ tpl .Values.likeService.deployment.container.env.DB_PORT . }}
+              value: {{ tpl .Values.likeService.deployment.container.env.DB_PORT . | quote }}
             - name: MARIADB_PASSWORD
               valueFrom:
                 secretKeyRef: