diff --git a/OpenKeychain/src/main/res/values/strings.xml b/OpenKeychain/src/main/res/values/strings.xml
index f31f819b3..31a81e651 100644
--- a/OpenKeychain/src/main/res/values/strings.xml
+++ b/OpenKeychain/src/main/res/values/strings.xml
@@ -1213,7 +1213,7 @@
     <string name="msg_dc_clear_meta_file">"Filename: %s"</string>
     <string name="msg_dc_clear_meta_mime">"MIME type: %s"</string>
     <string name="msg_dc_clear_meta_size">"File size: %s"</string>
-    <string name="msg_dc_clear_meta_size_unknown">"File size: unknown"</string>
+    <string name="msg_dc_clear_meta_size_unknown">"File size: Unknown"</string>
     <string name="msg_dc_clear_meta_time">"Modification time: %s"</string>
     <string name="msg_dc_clear_signature_bad">"Signature check NOT OK!"</string>
     <string name="msg_dc_clear_signature_check">"Verifying signature data"</string>