[LICENSE] Add SPDX Identifier
diff --git a/utils/examples/magic_drc.tcl b/utils/examples/magic_drc.tcl
index 9ea88fa..dc65943 100755
--- a/utils/examples/magic_drc.tcl
+++ b/utils/examples/magic_drc.tcl
@@ -11,6 +11,7 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
set ::env(DESIGN_NAME) openram_tc_1kb
drc off
lef read ../lef/sram_1rw1r_32_256_8_sky130_lp1.lef
