diff --git a/pjproject.spec b/pjproject.spec
index a7874a7..9d39aab 100644
--- a/pjproject.spec
+++ b/pjproject.spec
@@ -3,7 +3,7 @@
 Name:  pjproject
 Summary:  Libraries for building embedded/non-embedded VoIP applications
 Version: 2.3
-Release: 3%{?dist}
+Release: 4%{?dist}
 Group: System Environment/Libraries
 License: GPLv2+
 URL: http://www.pjsip.org
@@ -19,6 +19,8 @@ Patch2: pjproject_fix_libyuv.patch
 # Keep the .pc file clean
 # see https://bugzilla.redhat.com/show_bug.cgi?id=728302#c66
 Patch3: pjproject_fixup_pc_file.patch
+# Fix endianness on ARM platforms
+Patch4: pjproject_fix_arm.patch
 
 
 BuildRequires: alsa-lib-devel
@@ -98,12 +100,6 @@ rm -rf third_party/build/ilbc
 # that functionality, and it made it easier to ensure that we don't 
 # bundle any unnecessary libraries.  Please contact me if your project
 # needs this support, and I'll re-enable it
-%ifarch x86_64 %{ix86} %{arm} aarch64 ppc64le
-ARCH_FLAGS="$ARCH_FLAGS -DPJ_IS_LITTLE_ENDIAN=1 -DPJ_IS_BIG_ENDIAN=0"
-%else
-ARCH_FLAGS="$ARCH_FLAGS -DPJ_IS_LITTLE_ENDIAN=0 -DPJ_IS_BIG_ENDIAN=1"
-%endif
-
 export CFLAGS="-DPJ_HAS_IPV6=1 ${ARCHFLAGS} %{optflags}"
 %configure --enable-shared        \
            --with-external-gsm    \
@@ -168,6 +164,9 @@ echo -e '\n' >> %{buildroot}%{_includedir}/pj/config_site.h
 
 
 %changelog
+* Thu Oct 23 2014 Jared Smith <jsmith@fedoraproject.org> - 2.3-4
+- Fix endianness support on ARM platform
+
 * Wed Oct 15 2014 Jared Smith <jsmith@fedoraproject.org> - 2.3-3
 - Add IPv6 support
 
diff --git a/pjproject_fix_arm.patch b/pjproject_fix_arm.patch
new file mode 100644
index 0000000..c054463
--- /dev/null
+++ b/pjproject_fix_arm.patch
@@ -0,0 +1,28 @@
+--- a/pjlib/include/pj/config.h	2014-10-15 09:56:34.510724006 -0600
++++ a/pjlib/include/pj/config.h	2014-10-19 13:46:46.071057753 -0600
+@@ -238,14 +238,22 @@ 
+ #elif defined (PJ_M_ARMV4) || defined(ARM) || defined(_ARM_) ||  \
+ 	defined(ARMV4) || defined(__arm__)
+     /*
+-     * ARM, bi-endian, so raise error if endianness is not configured
++     * ARM, bi-endian, so raise error if endianness is not configured or detected
+      */
+ #   undef PJ_M_ARMV4
+ #   define PJ_M_ARMV4		1
+ #   define PJ_M_NAME		"armv4"
+ #   define PJ_HAS_PENTIUM	0
+ #   if !PJ_IS_LITTLE_ENDIAN && !PJ_IS_BIG_ENDIAN
+-#   	error Endianness must be declared for this processor
++#      if (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
++#         define PJ_IS_LITTLE_ENDIAN	1
++#         define PJ_IS_BIG_ENDIAN	0
++#      elif (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
++#         define PJ_IS_LITTLE_ENDIAN	0
++#         define PJ_IS_BIG_ENDIAN	1
++#      else
++#         error Endianness must be declared for this processor
++#      endif
+ #   endif
+ 
+ #elif defined (PJ_M_POWERPC) || defined(__powerpc) || defined(__powerpc__) || \
+