diff --git a/R/message.R b/R/message.R
index 9462bb7..475358a 100644
--- a/R/message.R
+++ b/R/message.R
@@ -239,6 +239,10 @@ gm_save_attachments <- function(x,
       !is.null(part$filename) && part$filename != "",
       x$payload$parts)
   }
+  # remove `:` from file name
+  if (length(attachments_parts) >0){
+  attachments_parts[[1]]$filename <-   gsub(":","_",attachments_parts[[1]]$filename)
+  }
   invisible(vapply(attachments_parts, function(part) {
                      att <- attachment(part$body$attachmentId, x$id, user_id)
                      save_attachment(att, file.path(path, part$filename))
diff --git a/gmailr.Rproj b/gmailr.Rproj
index 270314b..6daccaa 100644
--- a/gmailr.Rproj
+++ b/gmailr.Rproj
@@ -1,21 +1,21 @@
-Version: 1.0
-
-RestoreWorkspace: Default
-SaveWorkspace: Default
-AlwaysSaveHistory: Default
-
-EnableCodeIndexing: Yes
-UseSpacesForTab: Yes
-NumSpacesForTab: 2
-Encoding: UTF-8
-
-RnwWeave: Sweave
-LaTeX: pdfLaTeX
-
-AutoAppendNewline: Yes
-StripTrailingWhitespace: Yes
-
-BuildType: Package
-PackageUseDevtools: Yes
-PackageInstallArgs: --no-multiarch --with-keep.source
-PackageRoxygenize: rd,collate,namespace
+Version: 1.0
+
+RestoreWorkspace: Default
+SaveWorkspace: Default
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 2
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX
+
+AutoAppendNewline: Yes
+StripTrailingWhitespace: Yes
+
+BuildType: Package
+PackageUseDevtools: Yes
+PackageInstallArgs: --no-multiarch --with-keep.source
+PackageRoxygenize: rd,collate,namespace