diff --git a/slim/quantization/README.md b/slim/quantization/README.md
index 960eac4c60ed3f329ea8796f5e88e1ccf45444a3..48644c1de708e5a84a5ed040abe5144eb7940e77 100644
--- a/slim/quantization/README.md
+++ b/slim/quantization/README.md
@@ -63,7 +63,7 @@ python slim/quantization/train.py --not_quant_pattern yolo_output \
     -o max_iters=30000 \
     save_dir=./output/mobilenetv1 \
     LearningRate.base_lr=0.0001 \
-    LearningRate.schedulers='[!PiecewiseDecay {gamma: 0.1, milestones: [10000]}]' \
+    LearningRate.schedulers="[!PiecewiseDecay {gamma: 0.1, milestones: [10000]}]" \
     pretrain_weights=https://paddlemodels.bj.bcebos.com/object_detection/yolov3_mobilenet_v1.tar
 ```