diff --git a/libfreerdp/core/info.c b/libfreerdp/core/info.c
index df6b554d0..1e01a792b 100644
--- a/libfreerdp/core/info.c
+++ b/libfreerdp/core/info.c
@@ -571,7 +571,7 @@ static BOOL rdp_write_extended_info_packet(rdpRdp* rdp, wStream* s)
 		if (tz)
 			rlen = strnlen(tz, 254);
 		Stream_Write_UINT16(s, (UINT16)rlen);
-		if (Stream_Write_UTF16_String_From_UTF8(s, rlen / sizeof(WCHAR), tz, rlen, FALSE) < 0)
+		if (Stream_Write_UTF16_String_From_UTF8(s, rlen, tz, rlen, FALSE) < 0)
 			goto fail;
 		Stream_Write_UINT16(s, settings->DynamicDaylightTimeDisabled ? 0x01 : 0x00);
 	}