diff --git a/backuppc_check.pl b/backuppc_check.pl
index 68c6095..1c73340 100644
--- a/backuppc_check.pl
+++ b/backuppc_check.pl
@@ -87,12 +87,12 @@ print("\ntoobig : $toobig\n");
 print("\ntoosmall : $toosmall\n");
 
 # TOO BIG ?
-my $toobig = "true";
+my $toobig = "1";
 if ( $json->{new_size} > $json->{new_size_q3} + $json->{new_size_q3} - $json->{new_size_q1} * 1.5 && $json->{new_size} > $json->{new_size_avg} * 6 ) {
-  $toobig = "false";
+  $toobig = "0";
   }
 else {
-  $toobig = "true";
+  $toobig = "1";
 }
 
 print("\ntoobig : $toobig\n");
@@ -100,19 +100,19 @@ print("\ntoosmall : $toosmall\n");
 
 
 # TOO SMALL ?
-my $toosmall = "true";
+my $toosmall = "1";
 if ( $json->{new_size} < $json->{new_size_q1} - $json->{new_size_q3} - $json->{new_size_q1} * 1.5 && $json->{new_size} < $json->{new_size_avg} / 3 ) {
-  $toosmall = "false";
+  $toosmall = "0";
   }
 else {
-  $toosmall = "true";
+  $toosmall = "1";
 }
 
 print("\ntoobig : $toobig\n");
 print("\ntoosmall : $toosmall\n");
 
 # Print result
-if ( $toobig eq "false" && $toosmall eq "false" ) {
+if ( $toobig == "0" && $toosmall == "0" ) {
   print("Normal");
   }
 else {