diff --git a/Makefile b/Makefile
index 2a6b70b46..160949574 100644
--- a/Makefile
+++ b/Makefile
@@ -173,8 +173,8 @@ pkg: $(PKG)
 
 $(PKG):
 	-rm -rf $(PKGDIR)
-	$(WAF) configure --prefix=/usr/local --without-snapshot
-	DESTDIR=$(PKGDIR) $(WAF) install
+	$(WAF) configure --prefix=/usr/local --without-snapshot --dest-cpu=ia32
+	CFLAGS=-m32 DESTDIR=$(PKGDIR) $(WAF) install
 	$(packagemaker) \
 		--id "org.nodejs.NodeJS-$(VERSION)" \
 		--doc tools/osx-pkg.pmdoc \