diff --git a/pkgs/development/tools/ocaml/js_of_ocaml/Makefile.conf.diff b/pkgs/development/tools/ocaml/js_of_ocaml/Makefile.conf.diff
index e6fc96038ff..0e3f55df6d2 100644
--- a/pkgs/development/tools/ocaml/js_of_ocaml/Makefile.conf.diff
+++ b/pkgs/development/tools/ocaml/js_of_ocaml/Makefile.conf.diff
@@ -8,3 +8,14 @@
  
  ####
  
+--- old/Makefile	2014-09-30 16:40:37.000000000 +0200
++++ new/Makefile	2015-10-14 10:28:41.366815864 +0200
+@@ -52,7 +52,7 @@
+ install-bin:
+ 	install -d -m 755 $(BINDIR)
+ 	install $(BIN) $(BINDIR)
+-	install $(TOOLS) $(BINDIR)
++	install $(TOOLS) $(BINDIR) || true
+ 
+ uninstall: uninstall-lib uninstall-bin
+