diff --git a/scripts/install b/scripts/install
index b91af54..c8c5765 100644
--- a/scripts/install
+++ b/scripts/install
@@ -87,6 +87,7 @@ ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
 ynh_psql_test_if_first_run
 ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
diff --git a/scripts/restore b/scripts/restore
index 54ab6d5..83ce0db 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -95,6 +95,7 @@ ynh_print_info --message="Restoring the PostgreSQL database..."
 
 ynh_psql_test_if_first_run
 ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
 ynh_psql_execute_file_as_root --file="./db.sql" --database="$db_name"
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index e39d226..47d5665 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -79,6 +79,10 @@ ynh_secure_remove --file="/var/log/$app/"
 # Create PostgreSQL User
 ynh_psql_create_user $db_name $db_pwd
 
+# Install pg_trgm extension to provide a PostgreSQL search solution
+ynh_psql_test_if_first_run
+ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================