diff --git a/bluetooth_info.pl b/bluetooth_info.pl
index 1195de8..f5508a5 100755
--- a/bluetooth_info.pl
+++ b/bluetooth_info.pl
@@ -9,7 +9,7 @@ my $output = `bluetoothctl info` or die("disconnected\n");
 my $mac_address = ($output =~ /^Device\s+(\S+)/) ? "$1" : die("disconnected\n");
 my $device_name = ($output =~ /Name:\s+(.*)/) ? "$1" : "unknown";
 my $icon = ($output =~ /Icon:\s+(.*)/) ? "$1" : "";
-my $battery_percentage = ($output =~ /Battery Percentage:\s+\S+\s\(([0-9]+)\)/) ? "$1" : "";
+my $battery_percentage = ($output =~ /Battery Percentage:\s+\S+\s\(([0-9]+)\)/) ? "$1" : "?";
 
 if ($icon eq "audio-headphones") {
     printf("  ");