diff --git a/src/lib/commands/sona.c b/src/lib/commands/sona.c
index 7600556f..aa32feea 100644
--- a/src/lib/commands/sona.c
+++ b/src/lib/commands/sona.c
@@ -248,10 +248,7 @@ plane_sona(struct emp_qelem *plane_list, int x, int y,
 	pcp = ip->pcp;
 	if (!(pcp->pl_flags & P_A))	/* if it isn't an ASW plane */
 	    continue;
-	range = (int)techfact(pp->pln_tech, (100 - pp->pln_acc) / 10);
-/*
-		for (i=0; targ = getshipp(i); i++) {
-*/
+	range = (int)techfact(pp->pln_tech, (100.0 - pp->pln_acc) / 10.0);
 	for (i = 0; getship(i, &s); i++) {
 	    targ = &s;
 	    if (targ->shp_own == pp->pln_own || targ->shp_own == 0)