diff --git a/tools/diff/diff.xml b/tools/diff/diff.xml
index 84612485e5..26e26fcd09 100644
--- a/tools/diff/diff.xml
+++ b/tools/diff/diff.xml
@@ -2,7 +2,7 @@
     <description>analyzes two files and generates an unidiff text file with information about the differences and an optional Html report</description>
     <macros>
         <token name="@TOOL_VERSION@">3.10</token>
-        <token name="@GALAXY_VERSION@">0</token>
+        <token name="@GALAXY_VERSION@">1</token>
     </macros>
     <requirements>
         <requirement type="package" version="@TOOL_VERSION@">diffutils</requirement>