diff --git a/vim-sync-append.sh b/vim-sync-append.sh
old mode 100644
new mode 100755
index 269d966..d4df9d4
--- a/vim-sync-append.sh
+++ b/vim-sync-append.sh
@@ -1,7 +1,7 @@
 #! /bin/bash
 
 # Get current directory for future use in links
-VIM_SYNC_DIR=${pwd}
+VIM_SYNC_DIR=${PWD}
 
 # If a .vimrc_sync doesn't exist, link it
 if [[ ! ( -f ~/.vimrc_sync ) ]]; then