diff --git a/src/osmo-bsc-nat/bsc_nat.c b/src/osmo-bsc-nat/bsc_nat.c
index 149e7cb..f3a6748 100644
--- a/src/osmo-bsc-nat/bsc_nat.c
+++ b/src/osmo-bsc-nat/bsc_nat.c
@@ -20,6 +20,7 @@
 #include "config.h"
 
 #include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
 #include <osmocom/bsc_nat/bsc_nat.h>
 
 struct bsc_nat *bsc_nat_alloc(void *tall_ctx)