diff --git a/internal/convert/bool.go b/internal/convert/bool.go
index 7220dd5..d6139fa 100644
--- a/internal/convert/bool.go
+++ b/internal/convert/bool.go
@@ -28,9 +28,9 @@ func ToBool(v any) (bool, error) {
 func StrToBool(s string) (bool, error) {
 	lower := strings.ToLower(s)
 	switch lower {
-	case "1", "on", "yes", "true":
+	case "1", "on", "yes", "true", "t":
 		return true, nil
-	case "0", "off", "no", "false":
+	case "0", "off", "no", "false", "f":
 		return false, nil
 	}