diff --git a/plugins/3d/vrml/CMakeLists.txt b/plugins/3d/vrml/CMakeLists.txt
index 131b486d3f..8c2528600e 100644
--- a/plugins/3d/vrml/CMakeLists.txt
+++ b/plugins/3d/vrml/CMakeLists.txt
@@ -6,7 +6,7 @@ include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}/x3d
 )
 
-add_definitions( -DDEBUG_VRML1=3 -DDEBUG_VRML2=3 -DDEBUG_X3D=3 )
+add_definitions( -DDEBUG_VRML1=1 -DDEBUG_VRML2=1 -DDEBUG_X3D=1 )
 
 add_library( s3d_plugin_vrml MODULE
         ${CMAKE_SOURCE_DIR}/common/richio.cpp