diff --git a/R/importRDB1.r b/R/importRDB1.r
index 401de74edf344c21d6ad7b3b002fb808ccf84f0b..ffec7df430d68321cdabe204ac3978d476f57ec5 100644
--- a/R/importRDB1.r
+++ b/R/importRDB1.r
@@ -222,6 +222,7 @@ importRDB1 <- function(obs_url, asDateTime=FALSE, qw=FALSE, convertType = TRUE,
   }
   
   comment(data) <- hdr
+  attr(data, "url") <- obs_url
   
   return(data)