diff --git a/0001-fix-build-on-OS-X.patch b/0001-fix-build-on-OS-X.patch
new file mode 100644
index 0000000..8a56399
--- /dev/null
+++ b/0001-fix-build-on-OS-X.patch
@@ -0,0 +1,55 @@
+From e10e50b1bf37a275757de6b4c3f9791c5ef64742 Mon Sep 17 00:00:00 2001
+From: David Tardon <dtardon@redhat.com>
+Date: Wed, 18 Nov 2015 13:25:22 +0100
+Subject: [PATCH] fix build on OS X
+
+Change-Id: If979903fd6877f1b2f562695399e4cbe97efea2c
+---
+ src/test/LibetonyekUtilsTest.cpp | 24 ++++++++++++------------
+ 1 file changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/src/test/LibetonyekUtilsTest.cpp b/src/test/LibetonyekUtilsTest.cpp
+index 5c7af4c..5b6a7c6 100644
+--- a/src/test/LibetonyekUtilsTest.cpp
++++ b/src/test/LibetonyekUtilsTest.cpp
+@@ -73,12 +73,12 @@ void LibetonyekUtilsTest::tearDown()
+ 
+ void LibetonyekUtilsTest::testReadSVar()
+ {
+-  CPPUNIT_ASSERT_EQUAL(0L, readSVar(makeStream("\x0", 1)));
+-  CPPUNIT_ASSERT_EQUAL(-1L, readSVar(makeStream("\x1", 1)));
+-  CPPUNIT_ASSERT_EQUAL(1L, readSVar(makeStream("\x2", 1)));
+-  CPPUNIT_ASSERT_EQUAL(-2L, readSVar(makeStream("\x3", 1)));
+-  CPPUNIT_ASSERT_EQUAL(0x7fffffffL, readSVar(makeStream("\xfe\xff\xff\xff\xf", 5)));
+-  CPPUNIT_ASSERT_EQUAL(-0x80000000L, readSVar(makeStream("\xff\xff\xff\xff\xf", 5)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(0), readSVar(makeStream("\x0", 1)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(-1), readSVar(makeStream("\x1", 1)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(1), readSVar(makeStream("\x2", 1)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(-2), readSVar(makeStream("\x3", 1)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(0x7fffffffL), readSVar(makeStream("\xfe\xff\xff\xff\xf", 5)));
++  CPPUNIT_ASSERT_EQUAL(int64_t(-0x80000000L), readSVar(makeStream("\xff\xff\xff\xff\xf", 5)));
+   CPPUNIT_ASSERT_EQUAL(numeric_limits<int64_t>::max(), readSVar(makeStream("\xfe\xff\xff\xff\xff\xff\xff\xff\xff\x1", 10)));
+   CPPUNIT_ASSERT_EQUAL(numeric_limits<int64_t>::min(), readSVar(makeStream("\xff\xff\xff\xff\xff\xff\xff\xff\xff\x1", 10)));
+   CPPUNIT_ASSERT_THROW(readSVar(makeStream("\x80\x80\x80\x80\x80\x80\x80\x80\x80\x2", 10)), std::range_error);
+@@ -90,12 +90,12 @@ void LibetonyekUtilsTest::testReadSVar()
+ 
+ void LibetonyekUtilsTest::testReadUVar()
+ {
+-  CPPUNIT_ASSERT_EQUAL(0UL, readUVar(makeStream("\x0", 1)));
+-  CPPUNIT_ASSERT_EQUAL(1UL, readUVar(makeStream("\x1", 1)));
+-  CPPUNIT_ASSERT_EQUAL(0x7fUL, readUVar(makeStream("\x7f", 1)));
+-  CPPUNIT_ASSERT_EQUAL(0x80UL, readUVar(makeStream("\x80\x1", 2)));
+-  CPPUNIT_ASSERT_EQUAL(0x81UL, readUVar(makeStream("\x81\x1", 2)));
+-  CPPUNIT_ASSERT_EQUAL(0x12345678UL, readUVar(makeStream("\xf8\xac\xd1\x91\x01", 5)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(0), readUVar(makeStream("\x0", 1)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(1), readUVar(makeStream("\x1", 1)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(0x7f), readUVar(makeStream("\x7f", 1)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(0x80), readUVar(makeStream("\x80\x1", 2)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(0x81), readUVar(makeStream("\x81\x1", 2)));
++  CPPUNIT_ASSERT_EQUAL(uint64_t(0x12345678UL), readUVar(makeStream("\xf8\xac\xd1\x91\x01", 5)));
+   CPPUNIT_ASSERT_EQUAL(numeric_limits<uint64_t>::max(), readUVar(makeStream("\xff\xff\xff\xff\xff\xff\xff\xff\xff\x1", 10)));
+   CPPUNIT_ASSERT_THROW(readUVar(makeStream("\x80\x80\x80\x80\x80\x80\x80\x80\x80\x2", 10)), std::range_error);
+   CPPUNIT_ASSERT_THROW(readUVar(makeEmptyStream()), EndOfStreamException);
+-- 
+2.5.0
+
diff --git a/libetonyek.spec b/libetonyek.spec
index c72465c..ba0dd09 100644
--- a/libetonyek.spec
+++ b/libetonyek.spec
@@ -21,6 +21,7 @@ BuildRequires: pkgconfig(mdds)
 BuildRequires: pkgconfig(zlib)
 
 Patch0: 0001-fix-compilation-on-i386.patch
+Patch1: 0001-fix-build-on-OS-X.patch
 
 %description
 %{name} is library for import of documents from Apple iWork applications