diff --git a/collector/lib/ProcessSignalFormatter.cpp b/collector/lib/ProcessSignalFormatter.cpp
index b4c2b23b43..68e5f7b668 100644
--- a/collector/lib/ProcessSignalFormatter.cpp
+++ b/collector/lib/ProcessSignalFormatter.cpp
@@ -142,7 +142,9 @@ ProcessSignal* ProcessSignalFormatter::CreateProcessSignal(sinsp_evt* event) {
     signal_lineage->set_parent_uid(p.parent_uid());
   }
 
-  CLOG(DEBUG) << "Process (" << signal->pid() << "): " << signal->name() << " (" << signal->exec_file_path() << ")"
+  CLOG(DEBUG) << "Process (" << signal->container_id() << ": " << signal->pid() << "): "
+              << signal->name()
+              << " (" << signal->exec_file_path() << ")"
               << " " << signal->args();
 
   return signal;
@@ -202,7 +204,9 @@ ProcessSignal* ProcessSignalFormatter::CreateProcessSignal(sinsp_threadinfo* tin
     signal_lineage->set_parent_uid(p.parent_uid());
   }
 
-  CLOG(DEBUG) << "Process (" << signal->pid() << "): " << signal->name() << " (" << signal->exec_file_path() << ")"
+  CLOG(DEBUG) << "Process (" << signal->container_id() << ": " << signal->pid() << "): "
+              << signal->name()
+              << " (" << signal->exec_file_path() << ")"
               << " " << signal->args();
 
   return signal;