diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3a4da50..900ebde 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ CONFIGURE_FILE( "${CMAKE_SOURCE_DIR}/src/config.h.in" "${CMAKE_SOURCE_DIR}/src/c
 ADD_DEFINITIONS(-Os -Wall --std=gnu99 -Wmissing-declarations -DNDEBUG)
 
 IF(OPENWRT)
-  ADD_DEFINITIONS(-D_OPENWRT)
+  ADD_DEFINITIONS(-D_OPENWRT -DUSESYSLOG)
 ENDIF()
 
 IF(DEBUG)