diff --git a/meta/recipes-core/util-linux/util-linux_2.39.3.bb b/meta/recipes-core/util-linux/util-linux_2.39.3.bb
index 79ddf2d115..12c504e0a2 100644
--- a/meta/recipes-core/util-linux/util-linux_2.39.3.bb
+++ b/meta/recipes-core/util-linux/util-linux_2.39.3.bb
@@ -329,7 +329,7 @@ do_install_ptest() {
     cp ${S}/tests/*.sh ${D}${PTEST_PATH}/tests/
     cp -pR ${S}/tests/expected ${D}${PTEST_PATH}/tests/expected
     cp -pR ${S}/tests/ts ${D}${PTEST_PATH}/tests/
-    cp ${WORKDIR}/build/config.h ${D}${PTEST_PATH}
+    cp ${B}/config.h ${D}${PTEST_PATH}
 
     sed -i 's|@base_sbindir@|${base_sbindir}|g' ${D}${PTEST_PATH}/run-ptest