diff --git a/lib/lib.bash b/lib/lib.bash
index bbeeaa1..2dceab7 100644
--- a/lib/lib.bash
+++ b/lib/lib.bash
@@ -56,7 +56,7 @@ error() {
 }
 
 debug() {
-	[[ ${EM_DEBUG} ]] || return 0
+	[[ ${PSI_DEBUG} ]] || return 0
 	log 2 "$@"
 }