diff --git a/src/stdlib/fcvt.c b/src/stdlib/fcvt.c
index 003aa5aaa981e0928628b4ad5282f4925ef619e5..f90928fe160de88fa783d10bd0f10b44ac833950 100644
--- a/src/stdlib/fcvt.c
+++ b/src/stdlib/fcvt.c
@@ -16,7 +16,7 @@ char *fcvt(double x, int n, int *dp, int *sign)
 
 	if (n<=lz) {
 		*sign = i;
-		*dp = 0;
+		*dp = 1;
 		if (n>14U) n = 14;
 		return "000000000000000"+14-n;
 	}