diff --git a/poky/meta/recipes-devtools/valgrind/valgrind_3.15.0.bb b/poky/meta/recipes-devtools/valgrind/valgrind_3.15.0.bb
index ae3498f..85f0ff7 100644
--- a/poky/meta/recipes-devtools/valgrind/valgrind_3.15.0.bb
+++ b/poky/meta/recipes-devtools/valgrind/valgrind_3.15.0.bb
@@ -110,7 +110,7 @@
 # redirect functions like strlen.
 RRECOMMENDS_${PN} += "${TCLIBC}-dbg"
 
-RDEPENDS_${PN}-ptest += " sed perl perl-module-file-glob ${PN}-dbg"
+RDEPENDS_${PN}-ptest += " file perl perl-module-file-glob sed ${PN}-dbg"
 RDEPENDS_${PN}-ptest_append_libc-glibc = " glibc-utils"
 
 # One of the tests contains a bogus interpreter path on purpose.
@@ -168,6 +168,7 @@
         -o -name "*.h" \) \
         -exec rm {} \;
     mv ${D}${PTEST_PATH}/cachegrind/tests/a_c ${D}${PTEST_PATH}/cachegrind/tests/a.c
+    touch ${D}${PTEST_PATH}/cachegrind/tests/a.c -r ${D}${PTEST_PATH}/cachegrind/tests/cgout-test
 
     # find *_annotate in ${bindir} for yocto build
     sed -i s:\.\./\.\./cachegrind/cg_annotate:${bindir}/cg_annotate: ${D}${PTEST_PATH}/cachegrind/tests/ann1.vgtest