diff --git a/bindings/dune b/bindings/dune
index 8b2de9e..0a88cd7 100644
--- a/bindings/dune
+++ b/bindings/dune
@@ -1,4 +1,4 @@
 (library
  (name pci_bindings)
  (public_name pci.bindings)
- (libraries ctypes.stubs ctypes ctypes.foreign.threaded))
+ (libraries ctypes.stubs ctypes ctypes.foreign threads))