diff --git a/README.md b/README.md
index f4f2406..04cbdf2 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ Edit your `~/.bash_profile` or `~/.profile` and add the following to the top:
 
 ```bash
 export GITAWAREPROMPT=~/.bash/git-aware-prompt
-source $GITAWAREPROMPT/main.sh
+source "${GITAWAREPROMPT}/main.sh"
 ```
 
 
diff --git a/main.sh b/main.sh
index 620d7ed..4e6c418 100644
--- a/main.sh
+++ b/main.sh
@@ -1,2 +1,2 @@
-source $GITAWAREPROMPT/colors.sh
-source $GITAWAREPROMPT/prompt.sh
+source "${GITAWAREPROMPT}/colors.sh"
+source "${GITAWAREPROMPT}/prompt.sh"