Index: sexp.cpp
===================================================================
--- sexp.cpp	(revision 10726)
+++ sexp.cpp	(working copy)
@@ -14911,9 +14911,7 @@
 	ship_subsys *ptr;
 
 	z = ship_query_state(CTEXT(node));
-	if (z == 1){
-		return SEXP_KNOWN_FALSE;  // ship isn't around, nor will it ever be
-	} else if (z == -1) {
+	if (z == 1 || z == -1) {
 		return SEXP_CANT_EVAL;
 	}