diff --git a/lib/ManUtils/ManUtils.pm b/lib/ManUtils/ManUtils.pm
index ef59f5c..8b157ca 100644
--- a/lib/ManUtils/ManUtils.pm
+++ b/lib/ManUtils/ManUtils.pm
@@ -67,6 +67,9 @@ sub fmt {
       push @$errors, "grog detected several macro packages: $double. Using $macros. (@cmd)";
     }
 
+    # grog 1.22.3 somehow loses the -P-c argument, let's make sure it's in the list.
+    splice @cmd, 1, 0, '-P-c';
+
     my $groff = run_cmd \@cmd,
       '<' => \$input,
       '>' => \my $fmt,