diff --git a/README b/README
index 3082f71..0150e90 100644
--- a/README
+++ b/README
@@ -68,7 +68,7 @@
 To compile on NetBSD or DragonFly BSD, use:
 
  ln -s /usr/pkg/include/pciutils pci
- gmake CFLAGS=-I. LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib"
+ gmake CPPFLAGS=-I. LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib"
 
 To compile and run on Darwin/Mac OS X: