diff --git a/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m b/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
index 15b3a9f50..e963195dd 100644
--- a/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
+++ b/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
@@ -243,7 +243,7 @@ NS_ASSUME_NONNULL_BEGIN
 
     NSString *filename = filePath.lastPathComponent.stringByDeletingPathExtension;
     NSString *containingDir = filePath.stringByDeletingLastPathComponent;
-    NSString *newFilename = [filename stringByAppendingString:@"-thumbnail"];
+    NSString *newFilename = [filename stringByAppendingString:@"-signal-ios-thumbnail"];
 
     return [[containingDir stringByAppendingPathComponent:newFilename] stringByAppendingPathExtension:@"jpg"];
 }