diff --git a/src/librtlsdr.c b/src/librtlsdr.c
index a3eebad..05a380e 100644
--- a/src/librtlsdr.c
+++ b/src/librtlsdr.c
@@ -1249,6 +1249,9 @@ int rtlsdr_set_offset_tuning(rtlsdr_dev_t *dev, int on)
 
 	if ((dev->tuner_type == RTLSDR_TUNER_R820T) ||
 	    (dev->tuner_type == RTLSDR_TUNER_R828D))
+		// RTL-SDR-BLOG Hack, enables us to turn on the bias tee by clicking on "offset tuning" in software that doesn't have specified bias tee support.
+		// Offset tuning is not used for R820T devices so it is no problem.
+		rtlsdr_set_gpio(dev, 0, on);
 		return -2;
 
 	if (dev->direct_sampling)