diff --git a/scripts/tracetool.py b/scripts/tracetool.py
index 5379e19..bba4c54a 100755
--- a/scripts/tracetool.py
+++ b/scripts/tracetool.py
@@ -48,6 +48,13 @@ def trace_h_begin(events):
 #include "qemu-common.h"'''
 
 def trace_h_end(events):
+    for e in events:
+        if 'disable' in e.properties:
+            enabled = 0
+        else:
+            enabled = 1
+        print "#define TRACE_%s_ENABLED %d" % (e.name.upper(), enabled)
+    print
     print '#endif /* TRACE_H */'
 
 def trace_c_begin(events):