diff --git a/configure b/configure
index 436fb68a21a47fc2aaf3023750a996812ca948ea..c6715ee8038849812f8c46a9cbcf2f113ff71e9f 100755
--- a/configure
+++ b/configure
@@ -1497,7 +1497,7 @@ if test ! "x$enable_mysql" = "xno"; then
        else
           result "ok"
           mysqllib=`mysql_config --libs`
-          mysqlincdir=`mysql_config --cflags | sed -e 's,^.*-I\([^ ]\+\).*$,\1,'`
+          mysqlincdir=`mysql_config --cflags | sed -e 's,^.*-I\([^ ]*\).*$,\1,'`
           mysqllibdir=""
        fi
     else