diff --git a/src/xrCDB/CMakeLists.txt b/src/xrCDB/CMakeLists.txt
index 128c40d9f28..c4f061d67cd 100644
--- a/src/xrCDB/CMakeLists.txt
+++ b/src/xrCDB/CMakeLists.txt
@@ -12,6 +12,7 @@ include_directories(
     ${SDL_INCLUDE_DIRS}
     )
 
+add_definitions(-DXRCDB_EXPORTS)
 add_library(${PROJECT_NAME} SHARED ${${PROJECT_NAME}__SOURCES} ${${PROJECT_NAME}__INCLUDES})
 
 set_target_properties(${PROJECT_NAME} PROPERTIES COTIRE_CXX_PREFIX_HEADER_INIT "stdafx.h")