diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h
index 9b19d69..298b3e4 100644
--- a/include/osmocom/gsm/gsm0808.h
+++ b/include/osmocom/gsm/gsm0808.h
@@ -29,6 +29,9 @@
 #include <osmocom/gsm/gsm23003.h>
 #include <osmocom/core/utils.h>
 
+#define BSSMAP_MSG_SIZE 512
+#define BSSMAP_MSG_HEADROOM 128
+
 struct sockaddr_storage;
 
 struct msgb;
diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c
index fe7bc2c..2566ad5 100644
--- a/src/gsm/gsm0808.c
+++ b/src/gsm/gsm0808.c
@@ -34,9 +34,6 @@
  *  message generation/encoding.
  */
 
-#define BSSMAP_MSG_SIZE 512
-#define BSSMAP_MSG_HEADROOM 128
-
 /*! Create "Complete L3 Info" for AoIP, legacy implementation.
  * Instead use gsm0808_create_layer3_aoip2(), which is capable of three-digit MNC with leading zeros.
  *  \param[in] msg_l3 msgb containing Layer 3 Message