diff --git a/magmi/engines/magmi_productimportengine.php b/magmi/engines/magmi_productimportengine.php
index fb28c7b0..cbdd613f 100755
--- a/magmi/engines/magmi_productimportengine.php
+++ b/magmi/engines/magmi_productimportengine.php
@@ -1880,7 +1880,7 @@ public function assignCategories($pid, $item)
                 $inserts[] = "(?,?,?)";
                 $data[] = $catid;
                 $data[] = $pid;
-                $data[] = $catpos;
+                $data[] = (int)$catpos;
             }
         }