1 files changed, 1 insertions, 0 deletions
diff --git a/src/main/java/com/juick/server/CommandsManager.java b/src/main/java/com/juick/server/CommandsManager.java
index 08dafe77..004fbf4f 100644
--- a/src/main/java/com/juick/server/CommandsManager.java
+++ b/src/main/java/com/juick/server/CommandsManager.java
@@ -537,6 +537,7 @@ public class CommandsManager {
                 } else {
                     try {
                         attachmentFName = HttpUtils.downloadImage(attachment.toURL(), tmpDir).getHost();
+                        attachmentType = attachmentFName.substring(attachmentFName.length() - 3);
                     } catch (IOException e) {
                         logger.warn("Can not download {}", attachment.toURL());
                     }