hnbap_common.c: Fix include path
diff --git a/src/hnbap_common.c b/src/hnbap_common.c
index 9a2a01b..f321a1c 100644
--- a/src/hnbap_common.c
+++ b/src/hnbap_common.c
@@ -23,7 +23,7 @@
 
 #include <osmocom/core/msgb.h>
 
-#include "HNBAP-PDU.h"
+#include <osmocom/hnbap/HNBAP-PDU.h>
 #include "hnbap_common.h"
 #include "hnbgw.h"