diff --git a/memcache/config9.m4 b/memcache/config9.m4

index f1a3d91..e9be60e 100644

--- a/memcache/config9.m4

+++ b/memcache/config9.m4

@@ -71,6 +71,8 @@ if test "$PHP_MEMCACHE" != "no"; then

       session_inc_path=$abs_srcdir

     elif test -f $prefix/include/php/ext/session/php_session.h; then

       session_inc_path=$prefix/include/php

+    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

       session_inc_path=""

     fi