diff --git a/plugins/system/cpu_by_process b/plugins/system/cpu_by_process
index 504ff309..93916dc0 100755
--- a/plugins/system/cpu_by_process
+++ b/plugins/system/cpu_by_process
@@ -75,7 +75,7 @@ foreach my $process (keys %total_cpu_by_process)
 
 close(PS);
 
-if (@ARGV and $ARGV[1] eq "config")
+if (@ARGV and $ARGV[0] eq "config")
 {
 	print <<END;
 graph_title CPU time by Process