--- a/limma_voom.xml	Tue Jun 05 04:28:56 2018 -0400
+++ b/limma_voom.xml	Fri Jun 08 02:20:16 2018 -0400
@@ -1,4 +1,4 @@
-<tool id="limma_voom" name="limma" version="3.34.9.5">
+<tool id="limma_voom" name="limma" version="3.34.9.6">
     <description>
         Perform differential expression with limma-voom or limma-trend
     </description>
@@ -210,7 +210,7 @@
 
         <!-- Contrasts -->
         <repeat name="rep_contrast" title="Contrast" min="1" default="1">
-            <param name="contrast" type="text" label="Contrast of Interest" help="Names of two groups to compare separated by a hyphen e.g. Mut-WT. If the order is Mut-WT the fold changes in the results will be up/down in Mut relative to WT. If you have more than one contrast enter each separately using the Insert Contrast button below. For differences between contrasts use e.g. (Mut1-WT)-(Mut2-WT). For more info, see Chapter 8 in the limma User's guide: https://www.bioconductor.org/packages/release/bioc/vignettes/limma/inst/doc/usersguide.pdf">
+            <param name="contrast" type="text" label="Contrast of Interest" help="Names of two groups to compare separated by a hyphen e.g. Mut-WT. If the order is Mut-WT the fold changes in the results will be up/down in Mut relative to WT. If you have more than one contrast enter each separately using the Insert Contrast button below. For differences between contrasts use e.g. (Mut1-Ctrl1)-(Mut2-Ctrl2). For more info, see Chapter 8 in the limma User's guide: https://www.bioconductor.org/packages/release/bioc/vignettes/limma/inst/doc/usersguide.pdf">
                 <validator type="empty_field" />
                 <validator type="regex" message="Please only use letters, numbers or underscores">^[\(\w\)-]+$</validator>
             </param>