diff -Nru osmo-iuh-0.3.0/debian/changelog osmo-iuh-0.3.0/debian/changelog
--- osmo-iuh-0.3.0/debian/changelog	2018-11-05 20:54:43.000000000 +0000
+++ osmo-iuh-0.3.0/debian/changelog	2018-12-06 20:54:14.000000000 +0000
@@ -1,3 +1,10 @@
+osmo-iuh (0.3.0-5) unstable; urgency=medium
+
+  * debian/patches/fix_bigend_tests.patch:
+    - Fix build and test suite on big endian architectures (Closes: #913634)
+
+ -- Ruben Undheim <ruben.undheim@gmail.com>  Thu, 06 Dec 2018 21:54:14 +0100
+
 osmo-iuh (0.3.0-4) unstable; urgency=low
 
   * Upload to unstable
diff -Nru osmo-iuh-0.3.0/debian/patches/fix_bigend_tests.patch osmo-iuh-0.3.0/debian/patches/fix_bigend_tests.patch
--- osmo-iuh-0.3.0/debian/patches/fix_bigend_tests.patch	1970-01-01 00:00:00.000000000 +0000
+++ osmo-iuh-0.3.0/debian/patches/fix_bigend_tests.patch	2018-12-06 20:54:14.000000000 +0000
@@ -0,0 +1,59 @@
+From: Debian Mobcom Maintainers
+ <Debian-mobcom-maintainers@lists.alioth.debian.org>
+Date: Thu, 6 Dec 2018 21:51:02 +0100
+Subject: Fix test suite for big endian architectures
+
+---
+ src/ranap_msg_factory.c  | 6 ++++++
+ src/tests/test-helpers.c | 5 ++++-
+ 2 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/src/ranap_msg_factory.c b/src/ranap_msg_factory.c
+index c287f02..248a6d6 100644
+--- a/src/ranap_msg_factory.c
++++ b/src/ranap_msg_factory.c
+@@ -27,6 +27,8 @@
+ #include <osmocom/ranap/ranap_common.h>
+ #include <osmocom/ranap/ranap_ies_defs.h>
+ #include <osmocom/ranap/ranap_msg_factory.h>
++#include <osmocom/core/byteswap.h>
++#include <osmocom/core/endian.h>
+ 
+ #define DRANAP _ranap_DRANAP
+ 
+@@ -122,7 +124,11 @@ struct msgb *ranap_new_msg_initial_ue(uint32_t conn_id, int is_ps,
+ 	struct msgb *msg;
+ 	uint32_t ctxidbuf;
+ 	int rc;
++#if OSMO_IS_BIG_ENDIAN == 1
++	uint16_t buf0 = 0x4223;
++#else
+ 	uint16_t buf0 = 0x2342;
++#endif
+ 
+ 	memset(&ies, 0, sizeof(ies));
+ 	if (is_ps)
+diff --git a/src/tests/test-helpers.c b/src/tests/test-helpers.c
+index f218a79..3799bc3 100644
+--- a/src/tests/test-helpers.c
++++ b/src/tests/test-helpers.c
+@@ -31,6 +31,7 @@
+ #include <osmocom/gsm/gsm48.h>
+ 
+ #include <osmocom/ranap/RANAP_LAI.h>
++#include <osmocom/core/byteswap.h>
+ 
+ int asn1_xer_print = 0;
+ void *talloc_asn1_ctx;
+@@ -98,8 +99,10 @@ void test_asn1_helpers(void)
+ 	printf("Decoding back to uint32_t: 0x%x\n", res);
+ 	ASSERT(res == val1);
+ 
++	uint32_t val1_adjusted;
++	val1_adjusted = osmo_swab32(osmo_htonl(val1));
+ 	printf("Encoding %s to 24-bit asn.1 bitstring\n",
+-	       osmo_hexdump_nospc((unsigned char*)&val1, 3));
++	       osmo_hexdump_nospc((unsigned char*)&val1_adjusted, 3));
+ 	asn1_u24_to_bitstring(&enc, &tmpval, val1);
+ 
+ 	ASSERT(enc.size == 24/8);
diff -Nru osmo-iuh-0.3.0/debian/patches/series osmo-iuh-0.3.0/debian/patches/series
--- osmo-iuh-0.3.0/debian/patches/series	2018-11-05 20:54:43.000000000 +0000
+++ osmo-iuh-0.3.0/debian/patches/series	2018-12-06 20:54:14.000000000 +0000
@@ -1,2 +1,3 @@
 spelling.patch
 reproducible-build.patch
+fix_bigend_tests.patch