diff --git a/core/src/main/resources/hudson/matrix/MatrixProject/configure-entries.jelly b/core/src/main/resources/hudson/matrix/MatrixProject/configure-entries.jelly
index 3035fb63293d90cde539e2ec628627c4a8909b76..ab2dcea66df9b696eefc85198a2b495e454425b9 100644
--- a/core/src/main/resources/hudson/matrix/MatrixProject/configure-entries.jelly
+++ b/core/src/main/resources/hudson/matrix/MatrixProject/configure-entries.jelly
@@ -66,7 +66,7 @@
               <f:textbox name="axis.name" value="${axis.name}" />
             </f:entry>
             <f:entry title="Values">
-              <f:expandableTextBox name="axis.value" value="${axis.valueString}" />
+              <f:expandableTextbox name="axis.value" value="${axis.valueString}" />
             </f:entry>
             <f:entry>
               <div align="right">