diff --git a/centreon-plugins/src/check_centreon_snmp_memory b/centreon-plugins/src/check_centreon_snmp_memory
index e9b94fba5..611338d1c 100644
--- a/centreon-plugins/src/check_centreon_snmp_memory
+++ b/centreon-plugins/src/check_centreon_snmp_memory
@@ -159,6 +159,8 @@ my ($virt_alloc, my $virt_used, my $virt_size);
 
 my $indexV = 0;
 my $indexR = 0;
+my $indexC = 0;
+
 foreach my $key (oid_lex_sort(keys %$result)) {
     if  ($result->{$key} =~ m/Swap|Virtual/) {
 	my @cpt = split /\./,$key;
@@ -168,6 +170,10 @@ foreach my $key (oid_lex_sort(keys %$result)) {
 	my @cpt = split /\./,$key;
 	$indexR = $cpt[scalar(@cpt)-1];
     }
+    if  ($result->{$key} =~ m/Cached/) {
+		my @cpt = split /\./,$key;
+		$indexC = $cpt[scalar(@cpt)-1];
+    }    
 }
 if ($indexV == 0 || $indexR == 0) {
     printf("ERROR: cannot find ram information");
@@ -177,6 +183,7 @@ my $OID_hrStorage_used = ".1.3.6.1.2.1.25.2.3.1.6";
 my $OID_Swap_storage_used = ".1.3.6.1.2.1.25.2.3.1.6.".$indexV;
 my $OID_RealM_storage_used = ".1.3.6.1.2.1.25.2.3.1.6.".$indexR;
 
+
 my $used_mem = $session->get_table(Baseoid => $OID_hrStorage_used);
 if (!defined($used_mem)) {
     printf("ERROR: Description Table hrStorageUsed : %s.\n", $session->error);
@@ -187,6 +194,7 @@ if (!defined($used_mem)) {
 my $OID_hrStorage_size = ".1.3.6.1.2.1.25.2.3.1.5";
 my $OID_Swap_storage_size = ".1.3.6.1.2.1.25.2.3.1.5.".$indexV;
 my $OID_RealM_storage_size = ".1.3.6.1.2.1.25.2.3.1.5.".$indexR;
+my $OID_Cache_storage_size = ".1.3.6.1.2.1.25.2.3.1.5.".$indexC;
 
 my $total_mem = $session->get_table(Baseoid => $OID_hrStorage_size);
 if (!defined($total_mem)) {
@@ -198,6 +206,7 @@ if (!defined($total_mem)) {
 my $OID_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4"; 
 my $OID_Swap_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4.".$indexV;
 my $OID_RealM_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4.".$indexR;
+my $OID_Cache_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4.".$indexC;
 my $alloc_units = $session->get_table(Baseoid => $OID_storage_allocationUnits);
 if (!defined($alloc_units)) {
     printf("ERROR: Description Table hrStorageUsed : %s.\n", $session->error);
@@ -207,9 +216,15 @@ if (!defined($alloc_units)) {
 my $swap_used = $used_mem->{$OID_Swap_storage_used} * $alloc_units->{$OID_Swap_storage_allocationUnits};
 my $realM_used = $used_mem->{$OID_RealM_storage_used} * $alloc_units->{$OID_RealM_storage_allocationUnits};
 
+my $cache_used = 0;
+
+if (defined $indexC > 0) {
+	$cache_used = $total_mem->{$OID_Cache_storage_size} * $alloc_units->{$OID_Cache_storage_allocationUnits};
+}
+
 my $swap_size = $total_mem->{$OID_Swap_storage_size} * $alloc_units->{$OID_Swap_storage_allocationUnits};
 my $realM_size = $total_mem->{$OID_RealM_storage_size} * $alloc_units->{$OID_RealM_storage_allocationUnits};
-my $total_memory_used = $swap_used + $realM_used;
+my $total_memory_used = $swap_used + $realM_used - $cache_used;
 my $total_memory_size = $swap_size + $realM_size;
 
 # percentage of total, physical and swap  memory used
@@ -265,9 +280,9 @@ sub print_usage () {
 
 sub print_help () {
     print "#=========================================\n";
-	print "#  Copyright (c) 2007 Merethis SARL      =\n";
+	print "#  Copyright (c) 2007-2009 Merethis SARL =\n";
 	print "#  Developped by Julien Mathis           =\n";
-	print "#  Bugs to http://www.oreon-project.org/ =\n";
+	print "#  Bugs to http://www.centreon.com       =\n";
 	print "#=========================================\n";
 	print_usage();
 	print "\n";