diff --git a/postgresql/defaults/main.yml b/postgresql/defaults/main.yml
index f459aeff..c81ff575 100644
--- a/postgresql/defaults/main.yml
+++ b/postgresql/defaults/main.yml
@@ -15,4 +15,4 @@ postgresql_version: '9.6'
 locales_default: fr_FR.UTF-8
 
 # PostGIS
-postgresql_install_postgis: false 
+postgresql_install_postgis: False
diff --git a/postgresql/tasks/main.yml b/postgresql/tasks/main.yml
index 41ea5456..292849a0 100644
--- a/postgresql/tasks/main.yml
+++ b/postgresql/tasks/main.yml
@@ -19,4 +19,4 @@
 - include: logrotate.yml
 
 - include: postgis.yml
-  when: postgresql_install_postgis == "true" 
+  when: postgresql_install_postgis