diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5b24598a..6aa1768c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,7 @@ endif()
 
 include (CheckFunctionExists)
 include (CheckIncludeFile)
+include (CheckLibraryExists)
 include (CheckCXXSourceCompiles)
 include (CheckCXXCompilerFlag)