diff --git a/build.xml b/build.xml
index 00f8c6601..04b26e2a3 100644
--- a/build.xml
+++ b/build.xml
@@ -794,6 +794,7 @@ under the License.
             <sysproperty key="HSSF.testdata.path" file="${main.src.test}/org/apache/poi/hssf/data"/>
             <sysproperty key="HWPF.testdata.path" file="${scratchpad.src.test}/org/apache/poi/hwpf/data"/>
             <sysproperty key="HSLF.testdata.path" file="${scratchpad.src.test}/org/apache/poi/hslf/data"/>
+            <sysproperty key="HDGF.testdata.path" file="${scratchpad.src.test}/org/apache/poi/hdgf/data"/>
             <sysproperty key="java.awt.headless" value="true"/>
             <formatter type="plain"/>
             <formatter type="xml"/>