diff --git a/includes/class-wc-ajax.php b/includes/class-wc-ajax.php
index d0dc5389009..ee6d4fb318b 100644
--- a/includes/class-wc-ajax.php
+++ b/includes/class-wc-ajax.php
@@ -1809,6 +1809,10 @@ class WC_AJAX {
 					continue;
 				}
 
+				if ( ! $product || ( $product->is_type( 'variation' ) && empty( $product->parent ) ) ) {
+					continue;
+				}
+
 				$found_products[ $post ] = rawurldecode( $product->get_formatted_name() );
 			}
 		}