diff --git a/memcache/config9.m4 b/memcache/config9.m4
index 26b51b8..e58c7c3 100644
--- a/memcache/config9.m4
+++ b/memcache/config9.m4
@@ -72,6 +72,8 @@ if test "$PHP_MEMCACHE" != "no"; then
       session_inc_path="$abs_srcdir"
     elif test -f "$phpincludedir/ext/session/php_session.h"; then
       session_inc_path="$phpincludedir"
+    elif test -f $prefix/include/php/"$(php-config --version)"/ext/session/php_session.h; then
+      session_inc_path=$prefix/include/php/"$(php-config --version)"
     else
       for i in php php4 php5 php6; do
         if test -f "$prefix/include/$i/ext/session/php_session.h"; then