diff --git a/travis/check-spelling.pl b/travis/check-spelling.pl
index 6357e78a4e..52f84c5b77 100755
--- a/travis/check-spelling.pl
+++ b/travis/check-spelling.pl
@@ -26,11 +26,12 @@
 
 # Whitelist for spelling errors in manpages, in case the spell checker has
 # false-positives.
-my $binary_spelling_exceptions = {
-    #'exmaple' => 1, # Example for how to add entries to this whitelist.
-    'betwen' => 1, # asan_flags.inc contains this spelling error.
-    'dissassemble' => 1, # https://reviews.llvm.org/D93902
-};
+my $binary_spelling_exceptions = [
+    #'exmaple', # Example for how to add entries to this whitelist.
+    'betwen', # asan_flags.inc contains this spelling error.
+    'dissassemble', # https://reviews.llvm.org/D93902
+    'oT', # lintian finds this in build/i3bar when built with clang?!
+];
 my @binaries = qw(
     build/i3
     build/i3-config-wizard
@@ -41,7 +42,7 @@
     build/i3bar
 );
 for my $binary (@binaries) {
-    check_spelling($profile, slurp($binary), $binary_spelling_exceptions, sub {
+    check_spelling($profile->data, slurp($binary), $binary_spelling_exceptions, sub {
         my ($current, $fixed) = @_;
         say STDERR qq|Binary "$binary" contains a spelling error: "$current" should be "$fixed"|;
         $exitcode = 1;
@@ -50,13 +51,13 @@
 
 # Whitelist for spelling errors in manpages, in case the spell checker has
 # false-positives.
-my $manpage_spelling_exceptions = {
-};
+my $manpage_spelling_exceptions = [
+];
 
 for my $name (glob('build/man/*.1')) {
     for my $line (split(/\n/, slurp($name))) {
         next if $line =~ /^\.\\\"/o;
-        check_spelling($profile, $line, $manpage_spelling_exceptions, sub {
+        check_spelling($profile->data, $line, $manpage_spelling_exceptions, sub {
             my ($current, $fixed) = @_;
             say STDERR qq|Manpage "$name" contains a spelling error: "$current" should be "$fixed"|;
             $exitcode = 1;