diff --git a/man/man5/monitorix.conf.5 b/man/man5/monitorix.conf.5
index 78eacc0..7ac8134 100644
--- a/man/man5/monitorix.conf.5
+++ b/man/man5/monitorix.conf.5
@@ -171,7 +171,7 @@ Default value: \fIy\fP
 .P
 .BI enable_rrd_lock
 .RS
-This option will synchronise the rrd file access by creating the file \fI/tmp/monitorix.lock\fP and use it via flock.
+This option will synchronise the rrd file access by creating the file \fI/tmp/monitorix.lock\fP and use it via flock. The read lock during the cgi call can be disabled on a per call basis via setting the environment variable \fIINHIBIT_LOCKING\fP. This is useful for modules that call the cgi function internally.
 .P
 Default value: \fIn\fP
 .RE
diff --git a/monitorix.cgi b/monitorix.cgi
index 47aec41..3d6aa5f 100644
--- a/monitorix.cgi
+++ b/monitorix.cgi
@@ -578,7 +578,7 @@ if($mode eq "localhost") {
 	my @writers;	# array of file descriptors
 	my $children = 0;
 
-	my $lockfile_handler = lockfile_handler(\%config);
+	my $lockfile_handler = lockfile_handler(\%config) unless $ENV{INHIBIT_LOCKING};
 	global_flock($lockfile_handler, LOCK_SH);
 	foreach (split(',', $config{graph_name})) {
 		my $gn = trim($_);