Makefile: Windows does not like single quotes

diff --git a/Makefile b/Makefile
index dd4720310e809769442ea9b018ed3331adb96a12..a4268d71cfe75fcde726b8a5418f58d0d4ba73d9 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ all : commands
 
 ## commands         : show all commands.
 commands :
-       @grep -h -E '^##' ${MAKEFILES} | sed -e 's/## //g'
+       @grep -h -E '^##' ${MAKEFILES} | sed -e "s/## //g"
 
 ## docker-serve     : use docker to build the site
 docker-serve :