diff --git a/kfloppy.spec b/kfloppy.spec
index d69dfdb..a1b42d1 100644
--- a/kfloppy.spec
+++ b/kfloppy.spec
@@ -1,3 +1,4 @@
+%undefine __cmake_in_source_build
 Name:    kfloppy
 Summary: Floppy formatting tool 
 Version: 20.04.3
@@ -45,16 +46,12 @@ to format 3.5" and 5.25" floppy disks.
 
 
 %build
-mkdir %{_target_platform}
-pushd %{_target_platform}
-%{cmake_kf5} ..
-popd
-
-make %{?_smp_mflags} -C %{_target_platform}
+%{cmake_kf5}
+%cmake_build
 
 
 %install
-make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
+%cmake_install
 
 %find_lang %{name} --all-name --with-html