diff --git a/common/util/fb-util.cabal b/common/util/fb-util.cabal
index ac2e764..ba80182 100644
--- a/common/util/fb-util.cabal
+++ b/common/util/fb-util.cabal
@@ -141,7 +141,9 @@ library
 
     cxx-options: -std=c++17
 
-    install-includes: cpp/HsStruct.h
+    install-includes:
+        cpp/HsStruct.h
+        cpp/Destructible.h
     include-dirs: .
     hs-source-dirs: .