diff --git a/README.md b/README.md
index 8faa417e..a2390194 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,9 @@
 *If the build fails for you, please report the issue with a detailed error message to help the portability of Rack.*
 
 Clone this repository and `cd` into it.
-On Windows, use [MSYS2](http://www.msys2.org/) to set up a \*NIX shell.
+On Windows, use [MSYS2](http://www.msys2.org/) and launch a mingw32/64 shell.
 
-Clone submodules in `/ext`.
+Clone submodules.
 
 	git submodule update --init
 
diff --git a/dep/Makefile b/dep/Makefile
index 418afa57..f58e6384 100755
--- a/dep/Makefile
+++ b/dep/Makefile
@@ -35,9 +35,8 @@ $(glew):
 	$(WGET) https://downloads.sourceforge.net/project/glew/glew/$(patsubst glew-%,%,$@)/$@.tgz
 	$(UNTAR) $@.tgz
 	$(MAKE) -C $@
-	ln -s lib lib64
-	$(MAKE) -C $@ GLEW_DEST="$(LOCAL)" install
-	rm lib64
+	# On Linux, default lib path is lib64, so change it back to lib.
+	$(MAKE) -C $@ GLEW_DEST="$(LOCAL)" LIBDIR="$(LOCAL)/lib" install
 
 $(glfw):
 	$(WGET) https://github.com/glfw/glfw/releases/download/$(patsubst glfw-%,%,$@)/$@.zip