--- loncom/homework/lonhomework.pm	2008/01/21 17:20:45	1.290
+++ loncom/homework/lonhomework.pm	2008/03/12 02:46:53	1.291
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.290 2008/01/21 17:20:45 www Exp $
+# $Id: lonhomework.pm,v 1.291 2008/03/12 02:46:53 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1176,8 +1176,8 @@ sub update_construct_style {
 	    &Apache::lonnet::delenv('construct\\.style');
 	} elsif ($env{'form.style_file'} 
 	    && $env{'construct.style'} ne $env{'form.style_file'}) {
-	    &Apache::lonnet::appenv('construct.style' => 
-				        $env{'form.style_file'});
+	    &Apache::lonnet::appenv({'construct.style' => 
+				        $env{'form.style_file'}});
 	}
     }
 }