diff --git a/openair2/UTIL/LOG/vcd_signal_dumper.h b/openair2/UTIL/LOG/vcd_signal_dumper.h
index 06292a5212ba4d88230b74941fbc3e6f17c155d1..0592e78b50540ae3ee1f9a23e167814d2099837d 100644
--- a/openair2/UTIL/LOG/vcd_signal_dumper.h
+++ b/openair2/UTIL/LOG/vcd_signal_dumper.h
@@ -377,6 +377,8 @@ extern int ouput_vcd;
 
 #if T_TRACER
 
+#include "T.h"
+
 #define VCD_SIGNAL_DUMPER_INIT(x)         /* nothing */
 #define VCD_SIGNAL_DUMPER_CLOSE()         /* nothing */
 #define VCD_SIGNAL_DUMPER_CREATE_HEADER() /* nothing */