diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6f91eb5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+pkgs/
diff --git a/Makefile.builder b/Makefile.builder
new file mode 100644
index 0000000..6007c88
--- /dev/null
+++ b/Makefile.builder
@@ -0,0 +1,3 @@
+ifeq ($(PACKAGE_SET),dom0)
+RPM_SPEC_FILES := kernel.spec
+endif
diff --git a/kernel.spec b/kernel.spec
index 798a518..f0db035 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -1,3 +1,7 @@
+%if 0%{?qubes_builder}
+%define _sourcedir %(pwd)
+%define _specdir %(pwd)
+%endif
 # We have to override the new %%install behavior because, well... the kernel is special.
 %global __spec_install_pre %{___build_pre}