diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3360626..6fc3514 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,8 @@
 include(CheckCSourceCompiles)
 include(CheckCXXSourceCompiles)
 
+include(CMakeMacroLibtoolFile)
+
 project(tigervnc)
 set(VERSION 1.0.90)