Update install_pdk.sh
diff --git a/install_pdk.sh b/install_pdk.sh
index 0a633e9..f67d19f 100755
--- a/install_pdk.sh
+++ b/install_pdk.sh
@@ -67,8 +67,8 @@
 
 echo "################# Installing Magic                            #################"
 git clone git://opencircuitdesign.com/magic
-git checkout magic-8.3
 cd magic
+git checkout magic-8.3
 ./configure
 make
 sudo make install