diff --git a/README.NetBSD b/README.NetBSD
index 70ca297..9aac4c3 100755
--- a/README.NetBSD
+++ b/README.NetBSD
@@ -6,6 +6,7 @@
 # probably on any system using pkgsrc.  
 # One should have readline installed already (pkgsrc/devel/readline).
 
+MAKE=make
 # Quagga is currently documented not to require GNU make, but sometimes
 # BSD make fails.  Enable this if statement as a workaround.
 if false; then
@@ -13,29 +14,32 @@
     echo "WARNING: using gmake to work around nonportable makefiles"
 fi
 
+# Use /usr/quagga to be independent, and /usr/pkg to overwrite pkgsrc.
+PREFIX=/usr/pkg
+
 case $1 in
 
     build)
 	./bootstrap.sh
 	LDFLAGS="-L/usr/pkg/lib -R/usr/pkg/lib" CPPFLAGS="-I/usr/pkg/include" \
-    	./configure --prefix=/usr/quagga \
+    	./configure --prefix=${PREFIX} \
 	    --sysconfdir=/etc/zebra --localstatedir=/var/run/zebra \
-	    --enable-exampledir=/usr/quagga/share/examples/zebra \
-	    --enable-pkgsrcrcdir=/usr/quagga/etc/rc.d \
+	    --enable-exampledir=${PREFIX}/share/examples/zebra \
+	    --enable-pkgsrcrcdir=${PREFIX}/etc/rc.d \
 	    --enable-opaque-lsa --enable-vtysh
-	make
+	${MAKE}
 	;;
 
     install)
-    	make install
+    	${MAKE} install
 	;;
 
     clean)
-    	make clean
+    	${MAKE} clean
 	;;
 
     *)
-	echo "Illegal command $1"
+	echo "Usage: README.NetBSD (build|install|clean)"
 	exit 1
 	;;