diff --git a/milo/dtoa_milo.h b/milo/dtoa_milo.h
index d6821ed..02c8c08 100644
--- a/milo/dtoa_milo.h
+++ b/milo/dtoa_milo.h
@@ -284,7 +284,8 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, std::strin
 		kappa--;
 		if (p2 < delta) {
 			*K += kappa;
-			GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * kPow10[-kappa]);
+			int index = -static_cast<int>(kappa);
+			GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[-static_cast<int>(kappa)] : 0));
 			return;
 		}
 	}