diff --git a/setup.sh b/setup.sh
index cc55c04..3a4898e 100755
--- a/setup.sh
+++ b/setup.sh
@@ -43,7 +43,8 @@ while read -r -u 3 line; do
     value=${currvar[1]::-1}
 
     # check if there's a password to generate
-    if [[ ${currvar[0]} =~ (PASS|PASSWORD|PWD|PASSWD)$ ]]; then
+    if [[ ! ${currvar[1],,} =~ ^(true|false|yes|no)$ ]] && \
+       [[ ${currvar[0]} =~ (PASS|PASSWORD|PWD|PASSWD)$ ]]; then
       value=$(openssl rand -base64 29 | tr -d "=+/" | cut -c1-25)
     fi