diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index e95d40574d..742ef0d6b8 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -327,6 +327,7 @@ message(STATUS "Boost libraries found in ${Boost_LIBRARY_DIRS}")
 
 if(COLLADA_SUPPORT)
     find_package(OpenCOLLADA REQUIRED)
+    add_definitions(-DWITH_OPENCOLLADA)
 endif()
 
 if(HDF5_SUPPORT)