diff --git a/SPECS/kernel-6.1.spec b/SPECS/kernel-6.1.spec
index e943689..353982f 100755
--- a/SPECS/kernel-6.1.spec
+++ b/SPECS/kernel-6.1.spec
@@ -577,8 +577,12 @@ BuildKernel
 %endif
 
 %if %{with_bpftool}
-# Generate a vmlinux.h file.
-bpftool btf dump file vmlinux format c > tools/bpf/bpftool/vmlinux.h
+if [ -f tools/bpf/bpftool/vmlinux.h ]; then
+        mv tools/bpf/bpftool/vmlinux.h $RPM_BUILD_ROOT/usr/src/kernels/%{KVERREL}/
+else
+	# Generate a vmlinux.h file.
+	bpftool btf dump file vmlinux format c > tools/bpf/bpftool/vmlinux.h
+fi
 RPM_VMLINUX_H=vmlinux.h
 %endif
 
@@ -734,7 +738,7 @@ popd > /dev/null
 
 %if %{with_bpftool}
 pushd tools/bpf/bpftool > /dev/null
-%{bpftool_make} prefix=%{_prefix} bash_compdir=%{_sysconfdir}/bash_completion.d/ mandir=%{_mandir} install doc-install
+%{__make} -s EXTRA_CFLAGS="${RPM_OPT_FLAGS}" EXTRA_LDFLAGS="%{__global_ldflags}" DESTDIR=$RPM_BUILD_ROOT VMLINUX_H="${RPM_VMLINUX_H}" prefix=%{_prefix} bash_compdir=%{_sysconfdir}/bash_completion.d/ mandir=%{_mandir} install doc-install
 popd > /dev/null
 %endif