diff --git a/CMakeLists.txt b/CMakeLists.txt
index f0e43fd87..99f799c74 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -187,6 +187,7 @@ endif()
 
 INCLUDE_DIRECTORIES( include )
 
+INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)
 
 # If this is an in-source build (CMAKE_SOURCE_DIR == CMAKE_BINARY_DIR),