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-rw-r--r--src/hlr_ussd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/hlr_ussd.h b/src/hlr_ussd.h
index d1b9fe0..67e5d0d 100644
--- a/src/hlr_ussd.h
+++ b/src/hlr_ussd.h
@@ -1,3 +1,5 @@
+#pragma once
+
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/gsm/gsup.h>