(let ((length (loop for offset of-type fixnum upfrom 0
until (zerop (sap-ref-8 sap offset))
finally (return offset))))
- (let ((result (make-string length)))
+ (let ((result (make-string length :element-type 'base-char)))
(sb!kernel:copy-from-system-area sap 0
result (* sb!vm:vector-data-offset
sb!vm:n-word-bits)