diff --git a/include/fast_float/float_common.h b/include/fast_float/float_common.h
index bee88215..d693dc3b 100644
--- a/include/fast_float/float_common.h
+++ b/include/fast_float/float_common.h
@@ -234,7 +234,7 @@ int leading_zeroes_generic(uint64_t input_num, int last_bit = 0) {
     if(input_num & uint64_t(            0xff00)) { input_num >>=  8; last_bit |=  8; }
     if(input_num & uint64_t(              0xf0)) { input_num >>=  4; last_bit |=  4; }
     if(input_num & uint64_t(               0xc)) { input_num >>=  2; last_bit |=  2; }
-    if(input_num & uint64_t(               0x2)) { input_num >>=  1; last_bit |=  1; }
+    if(input_num & uint64_t(               0x2)) { /* input_num >>=  1; */ last_bit |=  1; }
     return 63 - last_bit;
 }