diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b9b2beabc8b085ae3952d39dae4ef64136827bd7..afefdb4bf0f32db403e0dafa4307060ab66846b6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,7 +11,7 @@ INCLUDE_DIRECTORIES(
 IF (\"${CMAKE_VERBOSITY_LEVEL}\" STREQUAL \"\")
   ADD_DEFINITIONS(-DVP_DEBUG_MODE=0)
 ELSE (\"${CMAKE_VERBOSITY_LEVEL}\" STREQUAL \"\")
-  ADD_DEFINITIONS(-DVP_DEBUG_MODE=${CMAKE_VERBOSITY_LEVEL})
+  ADD_DEFINITIONS(-DVP_DEBUG_MODE=${CMAKE_VERBOSITY_LEVEL} -DVP_DEBUG)
 ENDIF (\"${CMAKE_VERBOSITY_LEVEL}\" STREQUAL \"\")
 
 ADD_LIBRARY(${LIBRARY_NAME}