diff --git a/input/growth/source_sink_linear.xml b/input/growth/source_sink_linear.xml
index 79752cc09f..8e65b34fae 100644
--- a/input/growth/source_sink_linear.xml
+++ b/input/growth/source_sink_linear.xml
@@ -53,7 +53,7 @@
       <GrowthRegion>
         <growth>
           <item>
-            <commod>commodity1</commod>
+            <commod>commodity</commod>
             <piecewise_function>
               <piece>
                 <start>0</start>