diff --git a/bash/environment b/bash/environment
index 034d29e..90de624 100644
--- a/bash/environment
+++ b/bash/environment
@@ -36,7 +36,7 @@ fi
 
 function _add-path {
     dir="$1"
-    if [[ $PATH =~ .*$dir.* ]]; then
+    if [[ $PATH =~ "$dir" ]]; then
         return
     fi
     if [[ -d $dir ]]; then