diff --git a/acinclude.m4 b/acinclude.m4
index 0de18fc105..34eefe82b5 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -91,7 +91,7 @@ AC_DEFUN(
       if ( sh -c "$a --version" 2> /dev/null | grep GNU  2>&1 > /dev/null ) ;  then
          GNU_MAKE=$a ;
          GNU_MAKE_VERSION_MAJOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f3 -d' ' | cut -f1 -d'.'`
-         GNU_MAKE_VERSION_MINOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f2 -d'.'`
+         GNU_MAKE_VERSION_MINOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f2 -d'.' | cut -c1-2`
          break;
       fi
    done ;