diff --git a/bash-functions-lib.sh b/bash-functions-lib.sh
index ea47136..12edd67 100644
--- a/bash-functions-lib.sh
+++ b/bash-functions-lib.sh
@@ -16,7 +16,7 @@ noColour=$(tput sgr 0)
 readonly bold reverse red orange yellow green cyan blue magenta white noColour
 
 ## Set to 1 to enable debugging
-DEBUG=0
+DEBUG=${DEBUG-0}
 
 ## Useful globals
 GIT_PATH=""