diff --git a/src/block.c b/src/block.c

index a919c4e..77f8ec1 100644

--- a/src/block.c

+++ b/src/block.c

@@ -321,7 +321,7 @@ void vprintf_Block(iBlock *d, const char *format, va_list args) {

     /* Encoding error? Possibly the implementation frowns upon UTF-8. This seems to occur

        on some older 32-bit Android releases at least. */

     size_t msgLen = 0;

- uint8_t *msg = u8_u8_vasnprintf(NULL, &msgLen, (const unistring_uint8_t *) format, args);

+ uint8_t *msg = u8_u8_vasnprintf(NULL, &msgLen, (const uint8_t *) format, args);

     setData_Block(d, msg, msgLen); /* an extra copy */

     free(msg);

 }