diff --git a/categories.php b/categories.php
index 4ebff2e4..01409410 100644
--- a/categories.php
+++ b/categories.php
@@ -27,6 +27,8 @@ $sql = mysqli_query(
 
 $num_rows = mysqli_fetch_row(mysqli_query($mysqli, "SELECT FOUND_ROWS()"));
 
+$colors_used_array = [];
+
 //Colors Used
 $sql_colors_used = mysqli_query(
     $mysqli,