diff --git a/helpers/check-abi.py b/helpers/check-abi.py
--- a/helpers/check-abi.py
+++ b/helpers/check-abi.py
@@ -203,11 +203,11 @@
 		prog = subprocess.run(cmd, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 	except subprocess.CalledProcessError as e:
 		if e.returncode == 1:    # that means that we are not compatible, but still valid output.
-			logging.warning("abi-compliance-checker exited with 1:\n%s", prog.stdout.decode())
+			logging.warning("abi-compliance-checker exited with 1:\n%s", e.stdout.decode())
 
 			yml.update(parseACCOutputToDict(e.stdout))
 		else:
-			logging.error("abi-compliance-checker exited with %s:\nstdout:\n\ŧ%s\nstderr:\n\t%s", e.returncode, e.stdout.decode(), e.stderr.decode())
+			logging.error("abi-compliance-checker exited with %s:\nstdout:\n\t%s\nstderr:\n\t%s", e.returncode, e.stdout.decode(), e.stderr.decode())
 		retval = e.returncode
 		yml['error'] = e.returncode
 	else: