diff --git a/Makefile b/Makefile
index 039b5ce..a42f217 100644
--- a/Makefile
+++ b/Makefile
@@ -5,11 +5,12 @@
 # Most users should simply visit the site root in your web browser.
 #
 
+suffix=`basename \`dirname \\\`pwd\\\`\``
+
 install: mysite/_config.php
 
 mysite/_config.php:
-	php install.php install SS_testdatabase
-	
+	php install.php install SS_testdatabase_${suffix}
 
 test: clean install
 	$(MAKE) -C sapphire test