--- src/lib/IV-2_6/control.c.org	Wed Feb 12 05:48:58 1992
+++ src/lib/IV-2_6/control.c	Mon Jan  3 14:18:03 2000
@@ -162,7 +162,7 @@
 	    return true;
 	}
     }
-    for (c = state_->Prev(); c != nil; c = c->Prev()) {
+    for (ControlState* c = state_->Prev(); c != nil; c = c->Prev()) {
 	if (c->IsView(i)) {
 	    return true;
 	}