diff --git a/openair2/X2AP/x2ap.c b/openair2/X2AP/x2ap.c
index 8c3fe12a84..689c43048b 100644
--- a/openair2/X2AP/x2ap.c
+++ b/openair2/X2AP/x2ap.c
@@ -38,6 +38,7 @@ Address      : EURECOM,
 
 #include "intertask_interface.h"
 
+#include "x2ap.h"
 
 #include "assertions.h"
 #include "conversions.h"