diff --git a/doc/building on MS Windows.txt b/doc/building on MS Windows.txt
index bb15e1f05..4df3ddd22 100644
--- a/doc/building on MS Windows.txt	
+++ b/doc/building on MS Windows.txt	
@@ -214,7 +214,7 @@ a suitable location like ~/build and change working directory to it:
 Configure and build and install the library in a suitable place (I use
 ~/local as a root directory for installed packages.
 
-    ~/src/portaudio/configure --prefix=$(HOME)/local/portaudio/mingw64 \
+    ~/src/portaudio/configure --prefix=$HOME/local/portaudio/mingw64 \
        --with-winapi=wmme,directx,wdmks --disable-static --enable-shared CFLAGS=-DNDEBUG
     make && make install