diff --git a/atvm/watcher-service/atvm_run_watcher.py b/atvm/watcher-service/atvm_run_watcher.py
index 6b37fe6..2895e96 100644
--- a/atvm/watcher-service/atvm_run_watcher.py
+++ b/atvm/watcher-service/atvm_run_watcher.py
@@ -265,7 +265,7 @@ def extract_check_xml_timestamp_from_file(xml_path: Path) -> Optional[datetime]:
 
 def parse_duration_seconds(raw: str) -> Optional[float]:
     raw = " ".join(raw.split())
-    match = re.search(r"(?:(\d+)h\s+)?(?:(\d+)m\s+)?(\d+(?:\.\d+)?)s", raw)
+    match = re.search(r"(?:(\d+)h\s+)?(?:(\d+)m\s+)?(\d+(?:\.\d+)?)(?:s)?", raw)
     if not match:
         return None
     hours = int(match.group(1) or 0)