diff --git a/mozilla/tools/module-deps/bootstrap.pl b/mozilla/tools/module-deps/bootstrap.pl
index 0f47f7509f0..b1d8d3a1fc0 100755
--- a/mozilla/tools/module-deps/bootstrap.pl
+++ b/mozilla/tools/module-deps/bootstrap.pl
@@ -132,7 +132,7 @@ sub FindMakefiles
       
 	  $_ =~ s/.in//;  # Strip off the ".in"
 
-      $File::Find::dir =~ s/mozilla\///;  # Strip off mozilla/
+      $File::Find::dir =~ s/^mozilla\///;  # Strip off mozilla/
       
 	  #$_ =~ s/mozilla//;
 	  push(@foundMakefiles, "$File::Find::dir/$_");