diff --git a/phpldapadmin/Dockerfile b/phpldapadmin/Dockerfile
index 05209213199aaaf91360eb51f5809aab81cf4585..c62ffd3b80a9784e6a56d648bdb46e343ba5ebd6 100644
--- a/phpldapadmin/Dockerfile
+++ b/phpldapadmin/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:3.8
-RUN apk add --update --no-cache phpldapadmin php5-apache2 && \
+RUN apk add --update --no-cache phpldapadmin php5-apache2 php5-openssl && \
     ln -sf /dev/stdout /var/log/apache2/access.log && \
     ln -sf /dev/stderr /var/log/apache2/error.log && \
     mkdir -p /run/apache2/