add small build
diff --git a/releng.control/cc_config.xml b/releng.control/cc_config.xml
index 797b2fa..f667860 100644
--- a/releng.control/cc_config.xml
+++ b/releng.control/cc_config.xml
@@ -299,6 +299,35 @@
             </ant>
         </schedule>
     </project>
+    
+    <project
+        forceOnly="true"
+        requireModification="true"
+        name="wstfproj-R3.1-I">
+        <modificationset
+            quietperiod="120">
+            <cvs
+                module="${env.RELENG}"
+                reallyquiet="${env.CVS_QUIET}"/>
+        </modificationset>
+        <schedule
+            interval="${time.oneHour}">
+            <ant>
+                <property
+                    name="buildType"
+                    value="I"/>
+                <property
+                    name="buildBranch"
+                    value="R3.1"/>
+                <property
+                    name="mapVersionTag"
+                    value="HEAD"/>
+                <property
+                    name="build.distribution"
+                    value="wstfproj"/>
+            </ant>
+        </schedule>
+    </project>
     <project
         forceOnly="true"
         requireModification="true"