diff --git a/0001-tests-Fix-incorrect-usage-of-the-fail-unless-macro.patch b/0001-tests-Fix-incorrect-usage-of-the-fail-unless-macro.patch
new file mode 100644
index 0000000..0916248
--- /dev/null
+++ b/0001-tests-Fix-incorrect-usage-of-the-fail-unless-macro.patch
@@ -0,0 +1,36 @@
+From 89930d46c8fe833b9baf1cf76662275bfcb2f0d4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hr=C3=A1zk=C3=BD?= <lhrazky@redhat.com>
+Date: Thu, 6 Aug 2020 10:59:59 +0200
+Subject: [PATCH] tests: Fix incorrect usage of the fail_unless macro
+
+---
+ tests/hawkey/test_query.cpp | 2 +-
+ tests/hawkey/test_sack.cpp  | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tests/hawkey/test_query.cpp b/tests/hawkey/test_query.cpp
+index bf21e3349..12c7733c8 100644
+--- a/tests/hawkey/test_query.cpp
++++ b/tests/hawkey/test_query.cpp
+@@ -306,7 +306,7 @@ START_TEST(test_query_pkg)
+     hy_query_filter(q, HY_PKG_NAME, HY_EQ, "jay");
+     pset = hy_query_run_set(q);
+     hy_query_free(q);
+-    fail_unless(dnf_packageset_count(pset), 2);
++    fail_unless(dnf_packageset_count(pset) == 2);
+ 
+     // use hy_query_filter_package_in():
+     q = hy_query_create(test_globals.sack);
+diff --git a/tests/hawkey/test_sack.cpp b/tests/hawkey/test_sack.cpp
+index ba54602d1..5eab83b3f 100644
+--- a/tests/hawkey/test_sack.cpp
++++ b/tests/hawkey/test_sack.cpp
+@@ -83,7 +83,7 @@ START_TEST(test_list_arches)
+     const char ** arches = dnf_sack_list_arches(sack);
+ 
+     /* noarch, x86_64, athlon, i686, i586, i486, i386 */
+-    fail_unless(g_strv_length((gchar**)arches), 7);
++    fail_unless(g_strv_length((gchar**)arches) == 7);
+ 
+     if (strcmp(arches[2], "athlon") == 0) {
+         // Fedora, Mageia
diff --git a/libdnf.spec b/libdnf.spec
index c7d0e7b..a097b30 100644
--- a/libdnf.spec
+++ b/libdnf.spec
@@ -7,6 +7,8 @@
 %global libdnf_minor_version 48
 %global libdnf_micro_version 0
 
+%define __cmake_in_source_build 1
+
 # set sphinx package name according to distro
 %global requires_python2_sphinx python2-sphinx
 %global requires_python3_sphinx python3-sphinx
@@ -54,11 +56,12 @@
 
 Name:           libdnf
 Version:        %{libdnf_major_version}.%{libdnf_minor_version}.%{libdnf_micro_version}
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library providing simplified C and Python API to libsolv
 License:        LGPLv2+
 URL:            https://github.com/rpm-software-management/libdnf
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
+Patch1:         0001-tests-Fix-incorrect-usage-of-the-fail-unless-macro.patch
 
 BuildRequires:  cmake
 BuildRequires:  gcc
@@ -306,6 +309,10 @@ popd
 %endif
 
 %changelog
+* Mon Aug 10 2020 Nicola Sella <nsella@redhat.com> - 0.48.0-4
+- spec: Fix building with new cmake macros
+- tests: Fix incorrect usage of the fail_unless macros
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.48.0-3
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild