--- trunk/gtkdoc-common.pl.in	2008/09/04 15:26:15	597
+++ trunk/gtkdoc-common.pl.in	2009/03/17 11:20:01
@@ -51,7 +51,7 @@ 
     my $exit_code = 1;
 
     if (-e $old_file) {
-	`cmp -s $old_file $new_file`;
+	`cmp -s "$old_file" "$new_file"`;
 	$exit_code = $? >> 8;
 #	print "   cmp exit code: $exit_code ($?)\n";
     }