--- plugins/maxima/bin/maxima_detect.orig	2019-03-16 23:39:05.000000000 +0900
+++ plugins/maxima/bin/maxima_detect	2019-03-18 00:22:53.000000000 +0900
@@ -23,8 +23,8 @@
     else
       echo '('
       maxima --list-avail |\
-        grep '^version [A-Za-z0-9\.][A-Za-z0-9\.]*, lisp [A-Za-z0-9][A-Za-z0-9]*$' |\
-        sed -e 's/^version \([A-Za-z0-9\.][A-Za-z0-9\.]*\), lisp \([A-Za-z0-9][A-Za-z0-9]*\)$/"\1 \2"/'
+        grep '^version [A-Za-z0-9_\.][A-Za-z0-9_\.]*, lisp [A-Za-z0-9][A-Za-z0-9]*$' |\
+        sed -e 's/^version \([A-Za-z0-9_\.][A-Za-z0-9_\.]*\), lisp \([A-Za-z0-9][A-Za-z0-9]*\)$/"\1 \2"/'
       echo ')'
     fi
   fi