diff --git a/php/src/db/CapacitorChannel.php b/php/src/db/CapacitorChannel.php
index df96e2a..6ed4051 100644
--- a/php/src/db/CapacitorChannel.php
+++ b/php/src/db/CapacitorChannel.php
@@ -13,7 +13,9 @@ class CapacitorChannel implements ITransactor {
 
   const TABLE_NAME = null;
 
-  const COLUMN_DEFINITIONS = null;
+  protected function COLUMN_DEFINITIONS(): ?array {
+    return static::COLUMN_DEFINITIONS;
+  } const COLUMN_DEFINITIONS = null;
 
   const PRIMARY_KEYS = null;
 
@@ -63,7 +65,7 @@ class CapacitorChannel implements ITransactor {
     $this->useCache = static::USE_CACHE;
     $this->setup = false;
     $this->created = false;
-    $columnDefinitions = cl::withn(static::COLUMN_DEFINITIONS);
+    $columnDefinitions = $this->COLUMN_DEFINITIONS();
     $primaryKeys = cl::withn(static::PRIMARY_KEYS);
     $migration = cl::withn(static::MIGRATION);
     $lastMkey = 1;