diff --git a/src/tests/cli_tests.py b/src/tests/cli_tests.py
index d77cab5bc..f355e72e2 100755
--- a/src/tests/cli_tests.py
+++ b/src/tests/cli_tests.py
@@ -399,7 +399,7 @@ def rnp_decrypt_file(src, dst, password = PASSWORD):
         RNP, ['--homedir', RNPDIR, '--pass-fd', str(pipe), '--decrypt', src, '--output', dst])
     os.close(pipe)
     if ret != 0:
-        raise_err('rnp decryption failed', out + err)
+        raise_err('rnp decryption failed', 'retcode=' + str(ret), out + err)
 
 def rnp_sign_file_ex(src, dst, signers, passwords, options = None):
     pipe = pswd_pipe('\n'.join(passwords))