diff --git a/dolphin-plugins.spec b/dolphin-plugins.spec
index 3ba9525..f7560d4 100644
--- a/dolphin-plugins.spec
+++ b/dolphin-plugins.spec
@@ -1,3 +1,5 @@
+%undefine __cmake_in_source_build
+
 Name:    dolphin-plugins
 Summary: Dolphin plugins for revision control systems
 Version: 20.04.3
@@ -48,16 +50,12 @@ systems:
 
 
 %build
-mkdir %{_target_platform}
-pushd %{_target_platform}
-%{cmake_kf5} ..
-popd
-
-%make_build -C %{_target_platform}
+%{cmake_kf5}
+%cmake_build
 
 
 %install
-make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
+%cmake_install
 
 %find_lang %{name} --all-name