diff --git a/tasks/elasticsearch-Debian.yml b/tasks/elasticsearch-Debian.yml
index b14e3e6..4e535ca 100644
--- a/tasks/elasticsearch-Debian.yml
+++ b/tasks/elasticsearch-Debian.yml
@@ -12,7 +12,7 @@
   when: es_heap_size is defined
   register: elasticsearch_configure
 - name: Debian - configure data store
-  lineinfile: dest=/etc/default/elasticsearch regexp="^ES_DATA_DIR" insertafter="^#ES_DATA_DIR" line="ES_DATA_DIR={{ es_data_dir }}"
+  lineinfile: dest=/etc/default/elasticsearch regexp="^DATA_DIR" insertafter="^#DATA_DIR" line="DATA_DIR={{ es_data_dir }}"
   when: es_data_dir is defined
   register: elasticsearch_configure
 - name: Debian - configure elasticsearch user
diff --git a/tasks/elasticsearch-RedHat.yml b/tasks/elasticsearch-RedHat.yml
index 43eed94..d0b263b 100644
--- a/tasks/elasticsearch-RedHat.yml
+++ b/tasks/elasticsearch-RedHat.yml
@@ -13,7 +13,7 @@
   when: es_heap_size is defined
   register: elasticsearch_configure
 - name: RedHat - configure data store
-  lineinfile: dest=/etc/default/elasticsearch regexp="^ES_DATA_DIR" insertafter="^#ES_DATA_DIR" line="ES_DATA_DIR={{ es_data_dir }}"
+  lineinfile: dest=/etc/default/elasticsearch regexp="^DATA_DIR" insertafter="^#DATA_DIR" line="DATA_DIR={{ es_data_dir }}"
   when: es_data_dir is defined
   register: elasticsearch_configure
 - name: RedHat - configure elasticsearch user