diff --git a/FindGEOS.cmake b/FindGEOS.cmake
index cd51d52..f46ce21 100644
--- a/FindGEOS.cmake
+++ b/FindGEOS.cmake
@@ -13,7 +13,9 @@
 #    GEOS_LIBRARY
 #
 
-INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
+IF(EXISTS ${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
+  INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
+ENDIF()
 
 IF(WIN32)