diff --git a/Software/Applications/Caffe/Caffe_SSD_目标检测.md b/Software/Applications/Caffe/Caffe_SSD_目标检测.md
index 6ee6b09..6b7be9e 100644
--- a/Software/Applications/Caffe/Caffe_SSD_目标检测.md
+++ b/Software/Applications/Caffe/Caffe_SSD_目标检测.md
@@ -26,10 +26,11 @@
     make test -j8
     # (Optional)
     make runtest -j8
-    cd caffe/python
+    cd python
     for req in $(cat requirements.txt); do pip install $req; done
     pip install -r requirements.txt
-    export PATHONPATH=$PATHONPATH:$CAFFE_ROOT/python/caffe
+    export PYTHONPATH=$PYTHONPATH:$CAFFE_ROOT/python/caffe
+    cd ..
     make pycaffe
     # 验证 pycaffe 接口
     python