diff --git a/kernel-next-tfg.spec b/kernel-next-tfg.spec
index c37a933..0331afd 100644
--- a/kernel-next-tfg.spec
+++ b/kernel-next-tfg.spec
@@ -2,9 +2,6 @@
 %global rel_ver 1
 %global next_snapshot_date 20231003
 %global target_config defconfig
-# TODO: these are temporary, until 'stable' is 6.6
-%global major_ver 6
-%global minor_ver 6
 
 Name: kernel-next-tfg
 Version: %{next_snapshot_date}
diff --git a/master.inc b/master.inc
index 061819b..1c1bce2 100644
--- a/master.inc
+++ b/master.inc
@@ -139,11 +139,11 @@ ln -fns /usr/src/kernels/%{KVERREL} $RPM_BUILD_ROOT/lib/modules/%{KVERREL}/sourc
 
 # install actual Linux src to /usr/src/kernels/%{KVERREL}
 mkdir -p $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}
-%if %{major_ver} > 6 && %{minor_ver} > 5
-%{make} run-command KBUILD_RUN_COMMAND='${RPM_BUILD_DIR}/%{src_dir}/scripts/package/install-extmod-build $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}'
-%else
-touch $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}/MAYBE_THIS_WORKS
-%endif
+if [ -f scripts/package/install-extmod-build ]; then
+    %{make} run-command KBUILD_RUN_COMMAND='${RPM_BUILD_DIR}/%{src_dir}/scripts/package/install-extmod-build $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}'
+else
+    touch $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}/MAYBE_THIS_WORKS
+fi
 
 %clean
 rm -rf $RPM_BUILD_ROOT