diff --git a/generic_pla_175.xml.fdm_material b/generic_pla_175.xml.fdm_material
index 6f6f1adf6..be852e6aa 100644
--- a/generic_pla_175.xml.fdm_material
+++ b/generic_pla_175.xml.fdm_material
@@ -10,7 +10,6 @@ Generic PLA 1.75mm profile. The data in this file may not be correct for your sp
             <color>Generic</color>
         </name>
         <GUID>0ff92885-617b-4144-a03c-9989872454bc</GUID>
-        <reference_material_id>pla</reference_material_id>
         <version>13</version>
         <color_code>#ffc924</color_code>
         <description>Fast, safe and reliable printing. PLA is ideal for the fast and reliable printing of parts and prototypes with a great surface quality.</description>