diff --git a/INSTALL b/INSTALL
index c3ef7d9eb4..2a19411681 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,6 +1,6 @@
 To build the BOINC client software:
     ./_autosetup
-    ./configure --disable_server
+    ./configure --disable-server
 
 For more information, visit:
 http://boinc.berkeley.edu/trac/wiki/CompileClient