diff --git a/sql/v01/30.create.view.sql b/sql/v01/30.create.view.sql
index 1b48d32..a7efb83 100644
--- a/sql/v01/30.create.view.sql
+++ b/sql/v01/30.create.view.sql
@@ -98,7 +98,7 @@ SELECT s.year, m.mgnr, m.lfbis_nr, m.name,
        (COALESCE(m.prefix || ' ', '') || m.given_name || COALESCE(' ' || m.middle_names, '') || COALESCE(' ' || m.suffix, '')) AS other_names,
        a.name AS billing_name, COALESCE(a.address, m.address) AS address,
        COALESCE(a.country, m.country) AS country, COALESCE(a.postal_dest, m.postal_dest) AS postal_dest,
-       SUM(IIF(c.year_from <= s.year AND (c.year_to IS NULL OR c.year_to >= s.year), c.area, 0)) AS area
+       SUM(COALESCE(IIF((c.year_from IS NULL OR c.year_from <= s.year) AND (c.year_to IS NULL OR c.year_to >= s.year), c.area, NULL), 0)) AS area
 FROM season s, member m
     LEFT JOIN member_billing_address a ON a.mgnr = m.mgnr
     LEFT JOIN area_commitment c ON c.mgnr = m.mgnr
diff --git a/sql/v01/99.schema_version.sql b/sql/v01/99.schema_version.sql
index 1437479..14abf5a 100644
--- a/sql/v01/99.schema_version.sql
+++ b/sql/v01/99.schema_version.sql
@@ -1,3 +1,3 @@
 
 -- This value MUST NOT be changed while other connections are open!
-PRAGMA schema_version = 2900;
+PRAGMA schema_version = 3000;