diff --git a/meta/recipes-extended/gperf/gperf.inc b/meta/recipes-extended/gperf/gperf.inc
index a521e09..10ee912 100644
--- a/meta/recipes-extended/gperf/gperf.inc
+++ b/meta/recipes-extended/gperf/gperf.inc
@@ -14,8 +14,8 @@ inherit autotools
 EXTRA_AUTORECONF += " -I ${S}"
 
 do_configure_prepend() {
-        if [ ! -e acinclude.m4 ]; then
-                cat aclocal.m4 > acinclude.m4
+        if [ ! -e ${S}/acinclude.m4 ]; then
+                cat ${S}/aclocal.m4 > ${S}/acinclude.m4
         fi
 }