Index: src/hg/hgTracks/wigTrack.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/hgTracks/wigTrack.c,v
retrieving revision 1.92
retrieving revision 1.93
diff -b -B -U 4 -r1.92 -r1.93
--- src/hg/hgTracks/wigTrack.c	4 Sep 2009 23:45:28 -0000	1.92
+++ src/hg/hgTracks/wigTrack.c	18 Sep 2009 20:05:16 -0000	1.93
@@ -692,9 +692,9 @@
 	    if (preDraw[i].smooth < *overallLowerLimit)
 		*overallLowerLimit = preDraw[i].smooth;
 	    }
 	}
-    if (alwaysZero == 0)
+    if (alwaysZero == wiggleAlwaysZeroOn)
 	{
 	if ( *overallUpperLimit < 0)
 	    *overallUpperLimit = 0.0;
 	else if ( *overallLowerLimit > 0)

