diff --git a/src/Console/ModelsCommand.php b/src/Console/ModelsCommand.php
index 651f37e7f..f04291151 100644
--- a/src/Console/ModelsCommand.php
+++ b/src/Console/ModelsCommand.php
@@ -403,7 +403,7 @@ public function castPropertiesType($model)
             $realType = $this->getTypeOverride($realType);
             $this->properties[$name]['type'] = $this->getTypeInModel($model, $realType);
 
-            if (isset($this->nullableColumns[$name])) {
+            if (isset($this->nullableColumns[$name]) && $this->properties[$name]['type']) {
                 $this->properties[$name]['type'] .= '|null';
             }
         }