added ":" as illegal path component for *nix compatibility
diff --git a/src/metadata.rs b/src/metadata.rs
index 21bd9a4..4f9f581 100644
--- a/src/metadata.rs
+++ b/src/metadata.rs
@@ -54,6 +54,7 @@
 ];
 
 static PATH_ILLEGAL_STRINGS: &'static [&str] = &[
+    ":", // for *nix compatibility
     "\\", // for windows compatibility
     "<",
     ">",