diff --git a/geonetwork/stack.yml b/geonetwork/stack.yml
index 5496ba03d..c080243e8 100644
--- a/geonetwork/stack.yml
+++ b/geonetwork/stack.yml
@@ -20,4 +20,3 @@ services:
 
 volumes:
     geonetwork:
-
diff --git a/mariadb/stack.yml b/mariadb/stack.yml
index a75e30dd6..849dcb700 100644
--- a/mariadb/stack.yml
+++ b/mariadb/stack.yml
@@ -14,4 +14,3 @@ services:
         restart: always
         ports:
             - 8080:8080
-
diff --git a/mysql/stack.yml b/mysql/stack.yml
index ec51726c2..3f46e8249 100644
--- a/mysql/stack.yml
+++ b/mysql/stack.yml
@@ -14,4 +14,3 @@ services:
         restart: always
         ports:
             - 8080:8080
-
diff --git a/percona/stack.yml b/percona/stack.yml
index c68bd367c..ff4fc749e 100644
--- a/percona/stack.yml
+++ b/percona/stack.yml
@@ -14,4 +14,3 @@ services:
         restart: always
         ports:
             - 8080:8080
-