diff --git a/cura-fdm-materials.spec b/cura-fdm-materials.spec
index 8a67600..5ed4bbc 100644
--- a/cura-fdm-materials.spec
+++ b/cura-fdm-materials.spec
@@ -14,6 +14,9 @@ BuildArch:      noarch
 BuildRequires:  cmake
 Requires:       cura == 1:%{version}
 
+# Get Fedora 33++ behavior on anything older
+%undefine __cmake_in_source_build
+
 %description
 Cura material files.
 
@@ -23,11 +26,11 @@ These files are needed to work with printers like Ultimaker 2+ and Ultimaker 3.
 %autosetup -n fdm_materials-%{version} -p1
 
 %build
-%{cmake} .
-make %{?_smp_mflags}
+%cmake
+%cmake_build
 
 %install
-make install DESTDIR=%{buildroot}
+%cmake_install
 
 
 %files