diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7e041d2..2f734a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ if (NOT DEFINED bshell_enable_floating_point)
 	set(bshell_enable_floating_point 1)
 endif ()
 
-set(required_fx_assemblies fx.runtime fx.collections)
+set(required_fx_assemblies fx.runtime fx.collections fx.io fx.diagnostics)
 
 if (bshell_interactive)
 	set(required_fx_assemblies ${required_fx_assemblies} fx.term)