diff --git a/tests/test_intl.py b/tests/test_intl.py
index bcb602c819c..939ce563088 100644
--- a/tests/test_intl.py
+++ b/tests/test_intl.py
@@ -57,6 +57,7 @@ def _setup_intl(app_params):
 
             if not mo.exists() or mo.stat().st_mtime < po.stat().st_mtime:
                 # compile .mo file only if needed
+                print(f'# compiling .mo file {mo}')
                 write_mo(mo, read_po(po))