diff --git a/config.yml.sample b/config.yml.sample
index 81160e2..61f9e4b 100644
--- a/config.yml.sample
+++ b/config.yml.sample
@@ -12,6 +12,8 @@ odoo:
   database: odoo
   # A list of filters to limit contacts returned by odoo
   # Note : filters can only be set in a config file (not available as env var or cli arg)
+  # Also, if you need to set a False value, use 0, else perl will interpret False as a string,
+  # which will evaluate as True (for example, use ["is_company", "=", 0])
   filters:
     - ["country_code", "=", "FR"]
     - ["name", "ilike", "berteaud"]
diff --git a/odoo2carddav b/odoo2carddav
index a1d1e79..2eff151 100755
--- a/odoo2carddav
+++ b/odoo2carddav
@@ -27,7 +27,7 @@ my $conf = {
     password => undef,
     database => undef,
     filters  => [
-      ["is_company", "=", "False"]
+      ["is_company", "=", 0]
     ]
   },
   dav => {