diff --git a/CMakeLists.txt b/CMakeLists.txt
index 755a897ea08d529b5022d043244bcf315f82f8c6..5f60bf299db45b6f09de038a8de850f6c72ed476 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -104,6 +104,11 @@ if (GST_FOUND)
 
     include(qmlglsink.cmake)
 endif()
+
+add_definitions(
+    -DQGC_ENABLE_MAVLINK_INSPECTOR
+)
+
 #=============================================================================
 # Qt5
 #