diff --git a/Sources/RealModule/CMakeLists.txt b/Sources/RealModule/CMakeLists.txt
index bbb25704..05d345d1 100644
--- a/Sources/RealModule/CMakeLists.txt
+++ b/Sources/RealModule/CMakeLists.txt
@@ -13,6 +13,7 @@ add_library(RealModule
   Double+Real.swift
   ElementaryFunctions.swift
   Float+Real.swift
+  Float16+Real.swift
   Float80+Real.swift
   Real.swift
   RealFunctions.swift)