diff --git a/LMP91000.h b/LMP91000.h
index 5613e1e..a25ce31 100755
--- a/LMP91000.h
+++ b/LMP91000.h
@@ -110,7 +110,7 @@ const uint8_t LMP91000_WRITE_UNLOCK=0x00;
 
 const uint8_t LMP91000_NOT_PRESENT=0xA8;    // arbitrary library status code
 
-const double TIA_GAIN[] = {2750,3500,7000,14000,35000,120000,350000};
+const double TIA_GAIN[] = {0,2750,3500,7000,14000,35000,120000,350000};
 const double TIA_BIAS[] = {0, 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.12, 0.14,
     0.16, 0.18, 0.2, 0.22, 0.24};
 const uint8_t NUM_TIA_BIAS = 14;