diff --git a/scripts/namespace.pl b/scripts/namespace.pl
index 6135574a6f39..1da7bca201a4 100755
--- a/scripts/namespace.pl
+++ b/scripts/namespace.pl
@@ -65,13 +65,14 @@
 use warnings;
 use strict;
 use File::Find;
+use File::Spec;
 
 my $nm = ($ENV{'NM'} || "nm") . " -p";
 my $objdump = ($ENV{'OBJDUMP'} || "objdump") . " -s -j .comment";
-my $srctree = "";
-my $objtree = "";
-$srctree = "$ENV{'srctree'}/" if (exists($ENV{'srctree'}));
-$objtree = "$ENV{'objtree'}/" if (exists($ENV{'objtree'}));
+my $srctree = File::Spec->curdir();
+my $objtree = File::Spec->curdir();
+$srctree = File::Spec->rel2abs($ENV{'srctree'}) if (exists($ENV{'srctree'}));
+$objtree = File::Spec->rel2abs($ENV{'objtree'}) if (exists($ENV{'objtree'}));
 
 if ($#ARGV != -1) {
 	print STDERR "usage: $0 takes no parameters\n";
@@ -231,9 +232,9 @@ sub do_nm
 	}
 	($source = $basename) =~ s/\.o$//;
 	if (-e "$source.c" || -e "$source.S") {
-		$source = "$objtree$File::Find::dir/$source";
+		$source = File::Spec->catfile($objtree, $File::Find::dir, $source)
 	} else {
-		$source = "$srctree$File::Find::dir/$source";
+		$source = File::Spec->catfile($srctree, $File::Find::dir, $source)
 	}
 	if (! -e "$source.c" && ! -e "$source.S") {
 		# No obvious source, exclude the object if it is conglomerate