diff --git a/dockers/paheko/Dockerfile b/dockers/paheko/Dockerfile
index d467752..97b6ab5 100644
--- a/dockers/paheko/Dockerfile
+++ b/dockers/paheko/Dockerfile
@@ -12,6 +12,9 @@ RUN mkdir ${PAHEKO_DIR}/users
 COPY "dockers/paheko/config/facturation.tar.gz" ${PAHEKO_DIR}/data/plugins/
 RUN mkdir ${PAHEKO_DIR}/data/plugins/facturation && tar zxvf ${PAHEKO_DIR}/data/plugins/facturation.tar.gz -C ${PAHEKO_DIR}/data/plugins/facturation && rm ${PAHEKO_DIR}/data/plugins/facturation.tar.gz
 
+#pour corriger le bug "export excel"
+RUN docker-php-ext-install calendar
+
 #install cron pour factory_cron.sh
 RUN apt-get update && apt-get install cron joe rsyslog -y
 RUN sed -i '/imklog/s/^/#/' /etc/rsyslog.conf