diff --git a/konqueror.spec b/konqueror.spec
index 40b0050..2877f7b 100644
--- a/konqueror.spec
+++ b/konqueror.spec
@@ -1,3 +1,4 @@
+%undefine __cmake_in_source_build
 
 ## uncomment to enable bootstrap mode
 #global bootstrap 1
@@ -130,27 +131,15 @@ browsing the web in Konqueror.
 
 
 %build
-mkdir %{_target_platform}
-pushd %{_target_platform}
-%{cmake_kf5} .. \
+%{cmake_kf5} \
   -Wno-dev \
   %{?ninja:-G Ninja} \
   %{?tests:-DBUILD_TESTING:BOOL=ON}
-popd
-
-%if 0%{?ninja}
-%ninja_build -C %{_target_platform}
-%else
-%make_build -C %{_target_platform}
-%endif
+%cmake_build
 
 
 %install
-%if 0%{?ninja}
-%ninja_install -C %{_target_platform}
-%else
-make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
-%endif
+%cmake_install
 
 # omit some extraneous webenginepart files when building without webengine support
 %if ! 0%{?webengine}