diff --git a/src/Spring/Spring.Core/Spring.Core.build b/src/Spring/Spring.Core/Spring.Core.build
index bf1cee47..4b2ccd41 100644
--- a/src/Spring/Spring.Core/Spring.Core.build
+++ b/src/Spring/Spring.Core/Spring.Core.build
@@ -38,6 +38,7 @@
             </resources>
             <resources basedir="." prefix="Spring.Validation.Config">
                 <include name="Validation/Config/spring-validation-1.1.xsd" />
+                <include name="Validation/Config/spring-validation-1.3.xsd" />
             </resources>
             <references basedir="${current.bin.dir}">
                 <include name="Common.Logging.dll"/>