diff --git a/templates/icehouse/glance-api.conf b/templates/icehouse/glance-api.conf
index 7a298517..8f60108f 100644
--- a/templates/icehouse/glance-api.conf
+++ b/templates/icehouse/glance-api.conf
@@ -68,7 +68,6 @@ swift_enable_snet = False
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 delayed_delete = False
diff --git a/templates/juno/glance-api.conf b/templates/juno/glance-api.conf
index 56e287a2..c35b5adb 100644
--- a/templates/juno/glance-api.conf
+++ b/templates/juno/glance-api.conf
@@ -71,7 +71,6 @@ swift_enable_snet = False
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 delayed_delete = False
diff --git a/templates/kilo/glance-api.conf b/templates/kilo/glance-api.conf
index a0bab4e5..f21b70c2 100644
--- a/templates/kilo/glance-api.conf
+++ b/templates/kilo/glance-api.conf
@@ -77,7 +77,6 @@ swift_enable_snet = False
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 [image_format]
diff --git a/templates/mitaka/glance-api.conf b/templates/mitaka/glance-api.conf
index 4250a6a3..2ce20709 100644
--- a/templates/mitaka/glance-api.conf
+++ b/templates/mitaka/glance-api.conf
@@ -69,7 +69,6 @@ swift_store_create_container_on_put = true
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 [image_format]
diff --git a/templates/ocata/glance-api.conf b/templates/ocata/glance-api.conf
index 28fb0135..17e64cb0 100644
--- a/templates/ocata/glance-api.conf
+++ b/templates/ocata/glance-api.conf
@@ -73,7 +73,6 @@ swift_store_create_container_on_put = true
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 [image_format]
diff --git a/templates/queens/glance-api.conf b/templates/queens/glance-api.conf
index 790c12ad..3a3e6dc5 100644
--- a/templates/queens/glance-api.conf
+++ b/templates/queens/glance-api.conf
@@ -73,7 +73,6 @@ swift_store_create_container_on_put = true
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 [image_format]
diff --git a/templates/stein/glance-api.conf b/templates/stein/glance-api.conf
index eb51d1f2..6b445c35 100644
--- a/templates/stein/glance-api.conf
+++ b/templates/stein/glance-api.conf
@@ -69,7 +69,6 @@ swift_store_create_container_on_put = true
 rbd_store_ceph_conf = /etc/ceph/ceph.conf
 rbd_store_user = {{ rbd_user }}
 rbd_store_pool = {{ rbd_pool }}
-rbd_store_chunk_size = 8
 {% endif -%}
 
 [image_format]