diff --git a/foundation.cabal b/foundation.cabal
index d33d874..654488b 100644
--- a/foundation.cabal
+++ b/foundation.cabal
@@ -169,7 +169,8 @@ library
                      Foundation.System.Bindings.Hs
 
   include-dirs:      cbits
-  c-sources:         cbits/foundation_random.c
+  if !os(ghcjs)
+    c-sources:       cbits/foundation_random.c
                      cbits/foundation_network.c
                      cbits/foundation_time.c
                      cbits/foundation_utf8.c