Index: trunk/tools/czartool/Plotter.pm
===================================================================
--- trunk/tools/czartool/Plotter.pm	(revision 29771)
+++ trunk/tools/czartool/Plotter.pm	(revision 29802)
@@ -674,5 +674,5 @@
         "set style fill solid border -1;" .
         "set ylabel \"Number of Exposures\";" .
-        "set ylabel \"Magic Mask Fraction\";" .
+        "set xlabel \"Magic Mask Fraction\";" .
         "set boxwidth 0.75;" .
         "set xtic rotate by -90 scale 0;" .