diff --git a/src/dc_receive_imf.rs b/src/dc_receive_imf.rs
index 0c631c6d8..27860c147 100644
--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
@@ -1746,7 +1746,7 @@ unsafe fn check_verified_properties(
         }
     };
 
-    if mimeparser.e2ee_helper.encrypted {
+    if !mimeparser.e2ee_helper.encrypted {
         verify_fail("This message is not encrypted".into());
         return 0;
     }