diff --git a/support/config-fragments/minimal.config b/support/config-fragments/minimal.config
new file mode 100644
index 0000000000..0f20847f6d
--- /dev/null
+++ b/support/config-fragments/minimal.config
@@ -0,0 +1,6 @@
+# This config fragment disables Buildroot options that are turned on by
+# default, in order to arrive at minimal build time.
+BR2_INIT_NONE=y
+BR2_SYSTEM_BIN_SH_NONE=y
+# BR2_PACKAGE_BUSYBOX is not set
+# BR2_TARGET_ROOTFS_TAR is not set
diff --git a/utils/test-pkg b/utils/test-pkg
index 7633a21e53..25a25e2048 100755
--- a/utils/test-pkg
+++ b/utils/test-pkg
@@ -100,13 +100,7 @@ build_one() {
         return 2
     fi
 
-    cat >>"${dir}/.config" <<-_EOF_
-	BR2_INIT_NONE=y
-	BR2_SYSTEM_BIN_SH_NONE=y
-	# BR2_PACKAGE_BUSYBOX is not set
-	# BR2_TARGET_ROOTFS_TAR is not set
-	_EOF_
-    cat "${cfg}" >>"${dir}/.config"
+    cat "support/config-fragments/minimal.config" "${cfg}" >>"${dir}/.config"
 
     if ! make O="${dir}" olddefconfig > "${dir}/logfile" 2>&1; then
         return 2